SYMBOLCOMMON_NAMEaka. SYNONYMS
win.bumblebee (Back to overview)

BumbleBee


This malware is delivered by an ISO file, with an DLL inside with a custom loader. Because of the unique user-agent "bumblebee" this malware was dubbed BUMBLEBEE. At the time of Analysis by Google's Threat Analysis Group (TAG) BumbleBee was observed to fetch Cobalt Strike Payloads.

References
2023-01-09IntrinsecIntrinsec, CTI Intrinsec
@online{intrinsec:20230109:emotet:202716f, author = {Intrinsec and CTI Intrinsec}, title = {{Emotet returns and deploys loaders}}, date = {2023-01-09}, organization = {Intrinsec}, url = {https://www.intrinsec.com/emotet-returns-and-deploys-loaders/}, language = {English}, urldate = {2023-01-10} } Emotet returns and deploys loaders
BumbleBee Emotet IcedID
2022-11-16ProofpointPim Trouerbach, Axel F
@online{trouerbach:20221116:comprehensive:8278b4e, author = {Pim Trouerbach and Axel F}, title = {{A Comprehensive Look at Emotet Virus’ Fall 2022 Return}}, date = {2022-11-16}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/blog/threat-insight/comprehensive-look-emotets-fall-2022-return}, language = {English}, urldate = {2022-12-29} } A Comprehensive Look at Emotet Virus’ Fall 2022 Return
BumbleBee Emotet IcedID
2022-11-10IntezerNicole Fishbein
@online{fishbein:20221110:how:6b334be, author = {Nicole Fishbein}, title = {{How LNK Files Are Abused by Threat Actors}}, date = {2022-11-10}, organization = {Intezer}, url = {https://www.intezer.com/blog/malware-analysis/how-threat-actors-abuse-lnk-files/}, language = {English}, urldate = {2022-11-11} } How LNK Files Are Abused by Threat Actors
BumbleBee Emotet Mount Locker QakBot
2022-10-13SpamhausSpamhaus Malware Labs
@techreport{labs:20221013:spamhaus:43e3190, author = {Spamhaus Malware Labs}, title = {{Spamhaus Botnet Threat Update Q3 2022}}, date = {2022-10-13}, institution = {Spamhaus}, url = {https://info.spamhaus.com/hubfs/Botnet%20Reports/2022%20Q3%20Botnet%20Threat%20Update.pdf}, language = {English}, urldate = {2022-12-29} } Spamhaus Botnet Threat Update Q3 2022
FluBot Arkei Stealer AsyncRAT Ave Maria BumbleBee Cobalt Strike DCRat Dridex Emotet Loki Password Stealer (PWS) Nanocore RAT NetWire RC NjRAT QakBot RecordBreaker RedLine Stealer Remcos Socelars Tofsee Vjw0rm
2022-10-06Twitter (@ESETresearch)ESET Research
@online{research:20221006:bumblebee:bd949dd, author = {ESET Research}, title = {{Tweet on Bumblebee being modularized like trickbot}}, date = {2022-10-06}, organization = {Twitter (@ESETresearch)}, url = {https://twitter.com/ESETresearch/status/1577963080096555008}, language = {English}, urldate = {2022-10-10} } Tweet on Bumblebee being modularized like trickbot
BumbleBee
2022-10-03Check PointMarc Salinas Fernandez
@online{fernandez:20221003:bumblebee:25732bf, author = {Marc Salinas Fernandez}, title = {{Bumblebee: increasing its capacity and evolving its TTPs}}, date = {2022-10-03}, organization = {Check Point}, url = {https://research.checkpoint.com/2022/bumblebee-increasing-its-capacity-and-evolving-its-ttps/}, language = {English}, urldate = {2022-10-07} } Bumblebee: increasing its capacity and evolving its TTPs
BumbleBee Cobalt Strike Meterpreter Sliver Vidar
2022-09-26The DFIR ReportThe DFIR Report
@online{report:20220926:bumblebee:bce1e92, author = {The DFIR Report}, title = {{BumbleBee: Round Two}}, date = {2022-09-26}, organization = {The DFIR Report}, url = {https://thedfirreport.com/2022/09/26/bumblebee-round-two/}, language = {English}, urldate = {2022-10-04} } BumbleBee: Round Two
BumbleBee Cobalt Strike Meterpreter
2022-09-07cybleCyble
@online{cyble:20220907:bumblebee:f4baf9f, author = {Cyble}, title = {{Bumblebee Returns With New Infection Technique}}, date = {2022-09-07}, organization = {cyble}, url = {https://blog.cyble.com/2022/09/07/bumblebee-returns-with-new-infection-technique/}, language = {English}, urldate = {2022-09-16} } Bumblebee Returns With New Infection Technique
BumbleBee Cobalt Strike
2022-09-05Infinitum ITArda Büyükkaya
@online{bykkaya:20220905:bumblebee:ea43ba9, author = {Arda Büyükkaya}, title = {{Bumblebee Loader Malware Analysis}}, date = {2022-09-05}, organization = {Infinitum IT}, url = {https://www.infinitumit.com.tr/bumblebee-loader-malware-analysis/}, language = {English}, urldate = {2022-09-06} } Bumblebee Loader Malware Analysis
BumbleBee
2022-08-24MicrosoftMicrosoft Security Experts
@online{experts:20220824:looking:599689a, author = {Microsoft Security Experts}, title = {{Looking for the ‘Sliver’ lining: Hunting for emerging command-and-control frameworks}}, date = {2022-08-24}, organization = {Microsoft}, url = {https://www.microsoft.com/security/blog/2022/08/24/looking-for-the-sliver-lining-hunting-for-emerging-command-and-control-frameworks}, language = {English}, urldate = {2022-08-30} } Looking for the ‘Sliver’ lining: Hunting for emerging command-and-control frameworks
BumbleBee Sliver
2022-08-24Deep instinctDeep Instinct Threat Lab
@online{lab:20220824:dark:e9615d7, author = {Deep Instinct Threat Lab}, title = {{The Dark Side of Bumblebee Malware Loader}}, date = {2022-08-24}, organization = {Deep instinct}, url = {https://www.deepinstinct.com/blog/the-dark-side-of-bumblebee-malware-loader}, language = {English}, urldate = {2022-09-06} } The Dark Side of Bumblebee Malware Loader
BumbleBee
2022-08-18IBMCharlotte Hammond, Ole Villadsen
@online{hammond:20220818:from:501e8ac, author = {Charlotte Hammond and Ole Villadsen}, title = {{From Ramnit To Bumblebee (via NeverQuest): Similarities and Code Overlap Shed Light On Relationships Between Malware Developers}}, date = {2022-08-18}, organization = {IBM}, url = {https://securityintelligence.com/posts/from-ramnit-to-bumblebee-via-neverquest}, language = {English}, urldate = {2022-08-28} } From Ramnit To Bumblebee (via NeverQuest): Similarities and Code Overlap Shed Light On Relationships Between Malware Developers
BumbleBee Karius Ramnit TrickBot Vawtrak
2022-08-17CybereasonCybereason Global SOC Team
@online{team:20220817:bumblebee:56dc043, author = {Cybereason Global SOC Team}, title = {{Bumblebee Loader – The High Road to Enterprise Domain Control}}, date = {2022-08-17}, organization = {Cybereason}, url = {https://www.cybereason.com/blog/threat-analysis-report-bumblebee-loader-the-high-road-to-enterprise-domain-control}, language = {English}, urldate = {2022-08-19} } Bumblebee Loader – The High Road to Enterprise Domain Control
BumbleBee Cobalt Strike
2022-08-10WeixinRed Raindrop Team
@online{team:20220810:operation:cdad302, author = {Red Raindrop Team}, title = {{Operation(верность) mercenary: a torrent of steel trapped in the plains of Eastern Europe}}, date = {2022-08-10}, organization = {Weixin}, url = {https://mp.weixin.qq.com/s/cGS8FocPnUdBconLbbaG-g}, language = {Chinese}, urldate = {2022-08-15} } Operation(верность) mercenary: a torrent of steel trapped in the plains of Eastern Europe
BumbleBee Cobalt Strike
2022-08-08The DFIR ReportThe DFIR Report
@online{report:20220808:bumblebee:74d81a8, author = {The DFIR Report}, title = {{BumbleBee Roasts Its Way to Domain Admin}}, date = {2022-08-08}, organization = {The DFIR Report}, url = {https://thedfirreport.com/2022/08/08/bumblebee-roasts-its-way-to-domain-admin/}, language = {English}, urldate = {2022-08-09} } BumbleBee Roasts Its Way to Domain Admin
BumbleBee Cobalt Strike
2022-08-04CloudsekAnandeshwar Unnikrishnan, Aastha Mittal
@online{unnikrishnan:20220804:technical:f03f8fa, author = {Anandeshwar Unnikrishnan and Aastha Mittal}, title = {{Technical Analysis of Bumblebee Malware Loader}}, date = {2022-08-04}, organization = {Cloudsek}, url = {https://cloudsek.com/technical-analysis-of-bumblebee-malware-loader/}, language = {English}, urldate = {2022-10-24} } Technical Analysis of Bumblebee Malware Loader
BumbleBee
2022-08-03Palo Alto Networks Unit 42Brad Duncan
@online{duncan:20220803:flight:a8efd82, author = {Brad Duncan}, title = {{Flight of the Bumblebee: Email Lures and File Sharing Services Lead to Malware}}, date = {2022-08-03}, organization = {Palo Alto Networks Unit 42}, url = {https://unit42.paloaltonetworks.com/bumblebee-malware-projector-libra/}, language = {English}, urldate = {2022-08-08} } Flight of the Bumblebee: Email Lures and File Sharing Services Lead to Malware
BazarBackdoor BumbleBee Cobalt Strike Conti
2022-07-17ResecurityResecurity
@online{resecurity:20220717:shortcutbased:6cd77fb, author = {Resecurity}, title = {{Shortcut-Based (LNK) Attacks Delivering Malicious Code On The Rise}}, date = {2022-07-17}, organization = {Resecurity}, url = {https://resecurity.com/blog/article/shortcut-based-lnk-attacks-delivering-malicious-code-on-the-rise}, language = {English}, urldate = {2022-07-28} } Shortcut-Based (LNK) Attacks Delivering Malicious Code On The Rise
AsyncRAT BumbleBee Emotet IcedID QakBot
2022-07-07IBMOle Villadsen, Charlotte Hammond, Kat Weinberger
@online{villadsen:20220707:unprecedented:d0a6add, author = {Ole Villadsen and Charlotte Hammond and Kat Weinberger}, title = {{Unprecedented Shift: The Trickbot Group is Systematically Attacking Ukraine}}, date = {2022-07-07}, organization = {IBM}, url = {https://securityintelligence.com/posts/trickbot-group-systematically-attacking-ukraine}, language = {English}, urldate = {2022-07-12} } Unprecedented Shift: The Trickbot Group is Systematically Attacking Ukraine
AnchorMail BumbleBee Cobalt Strike IcedID Meterpreter
2022-07-07FortinetErin Lin
@online{lin:20220707:notable:71d2df3, author = {Erin Lin}, title = {{Notable Droppers Emerge in Recent Threat Campaigns}}, date = {2022-07-07}, organization = {Fortinet}, url = {https://www.fortinet.com/blog/threat-research/notable-droppers-emerge-in-recent-threat-campaigns}, language = {English}, urldate = {2022-07-15} } Notable Droppers Emerge in Recent Threat Campaigns
BumbleBee Emotet PhotoLoader QakBot
2022-06-28SymantecThreat Hunter Team, Vishal Kamble
@online{team:20220628:bumblebee:29809dd, author = {Threat Hunter Team and Vishal Kamble}, title = {{Bumblebee: New Loader Rapidly Assuming Central Position in Cyber-crime Ecosystem}}, date = {2022-06-28}, organization = {Symantec}, url = {https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/bumblebee-loader-cybercrime}, language = {English}, urldate = {2022-07-20} } Bumblebee: New Loader Rapidly Assuming Central Position in Cyber-crime Ecosystem
BumbleBee
2022-06-13SekoiaThreat & Detection Research Team
@online{team:20220613:bumblebee:0a56342, author = {Threat & Detection Research Team}, title = {{BumbleBee: a new trendy loader for Initial Access Brokers}}, date = {2022-06-13}, organization = {Sekoia}, url = {https://blog.sekoia.io/bumblebee-a-new-trendy-loader-for-initial-access-brokers/}, language = {English}, urldate = {2022-06-17} } BumbleBee: a new trendy loader for Initial Access Brokers
BumbleBee
2022-06-07cybleCyble
@online{cyble:20220607:bumblebee:9f2dc4a, author = {Cyble}, title = {{Bumblebee Loader on The Rise}}, date = {2022-06-07}, organization = {cyble}, url = {https://blog.cyble.com/2022/06/07/bumblebee-loader-on-the-rise/}, language = {English}, urldate = {2022-06-09} } Bumblebee Loader on The Rise
BumbleBee Cobalt Strike
2022-05-25Team CymruS2 Research Team
@online{team:20220525:bablosoft:90f50c4, author = {S2 Research Team}, title = {{Bablosoft; Lowering the Barrier of Entry for Malicious Actors}}, date = {2022-05-25}, organization = {Team Cymru}, url = {https://team-cymru.com/blog/2022/05/25/bablosoft-lowering-the-barrier-of-entry-for-malicious-actors/}, language = {English}, urldate = {2022-05-29} } Bablosoft; Lowering the Barrier of Entry for Malicious Actors
BlackGuard BumbleBee RedLine Stealer
2022-05-19InfoSec Handlers Diary BlogBrad Duncan
@online{duncan:20220519:bumblebee:20c59e6, author = {Brad Duncan}, title = {{Bumblebee Malware from TransferXL URLs}}, date = {2022-05-19}, organization = {InfoSec Handlers Diary Blog}, url = {https://isc.sans.edu/diary/rss/28664}, language = {English}, urldate = {2022-05-25} } Bumblebee Malware from TransferXL URLs
BumbleBee Cobalt Strike
2022-05-12OALabsSergei Frankoff
@online{frankoff:20220512:taking:8bf052d, author = {Sergei Frankoff}, title = {{Taking a look at Bumblebee loader}}, date = {2022-05-12}, organization = {OALabs}, url = {https://research.openanalysis.net/bumblebee/malware/loader/unpacking/2022/05/12/bumblebee_loader.html}, language = {English}, urldate = {2022-05-17} } Taking a look at Bumblebee loader
BumbleBee
2022-05-12Intel 471Intel 471
@online{471:20220512:what:05369d4, author = {Intel 471}, title = {{What malware to look for if you want to prevent a ransomware attack}}, date = {2022-05-12}, organization = {Intel 471}, url = {https://intel471.com/blog/malware-before-ransomware-trojan-information-stealer-cobalt-strike}, language = {English}, urldate = {2022-05-13} } What malware to look for if you want to prevent a ransomware attack
Conti BumbleBee Cobalt Strike IcedID Sliver
2022-05-11InfoSec Handlers Diary BlogBrad Duncan
@online{duncan:20220511:ta578:0a0a686, author = {Brad Duncan}, title = {{TA578 using thread-hijacked emails to push ISO files for Bumblebee malware}}, date = {2022-05-11}, organization = {InfoSec Handlers Diary Blog}, url = {https://isc.sans.edu/diary/28636}, language = {English}, urldate = {2022-05-11} } TA578 using thread-hijacked emails to push ISO files for Bumblebee malware
BumbleBee Cobalt Strike IcedID PhotoLoader
2022-05-11SANS ISCBrad Duncan
@online{duncan:20220511:ta578:2128ae0, author = {Brad Duncan}, title = {{TA578 using thread-hijacked emails to push ISO files for Bumblebee malware}}, date = {2022-05-11}, organization = {SANS ISC}, url = {https://isc.sans.edu/diary/rss/28636}, language = {English}, urldate = {2022-05-17} } TA578 using thread-hijacked emails to push ISO files for Bumblebee malware
BumbleBee
2022-04-29NCC GroupMike Stokkel, Nikolaos Totosis, Nikolaos Pantazopoulos
@online{stokkel:20220429:adventures:7be43ad, author = {Mike Stokkel and Nikolaos Totosis and Nikolaos Pantazopoulos}, title = {{Adventures in the land of BumbleBee – a new malicious loader}}, date = {2022-04-29}, organization = {NCC Group}, url = {https://research.nccgroup.com/2022/04/29/adventures-in-the-land-of-bumblebee-a-new-malicious-loader/}, language = {English}, urldate = {2022-04-29} } Adventures in the land of BumbleBee – a new malicious loader
BazarBackdoor BumbleBee Conti
2022-04-28ProofpointKelsey Merriman, Pim Trouerbach
@online{merriman:20220428:this:4b5ea2a, author = {Kelsey Merriman and Pim Trouerbach}, title = {{This isn't Optimus Prime's Bumblebee but it's Still Transforming}}, date = {2022-04-28}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/blog/threat-insight/bumblebee-is-still-transforming}, language = {English}, urldate = {2022-04-29} } This isn't Optimus Prime's Bumblebee but it's Still Transforming
BumbleBee TA578 TA579
2022-04-28Bleeping ComputerIonut Ilascu
@online{ilascu:20220428:new:b351960, author = {Ionut Ilascu}, title = {{New Bumblebee malware replaces Conti's BazarLoader in cyberattacks}}, date = {2022-04-28}, organization = {Bleeping Computer}, url = {https://www.bleepingcomputer.com/news/security/new-bumblebee-malware-replaces-contis-bazarloader-in-cyberattacks/}, language = {English}, urldate = {2022-07-01} } New Bumblebee malware replaces Conti's BazarLoader in cyberattacks
BumbleBee
2022-04-27Medium elis531989Eli Salem
@online{salem:20220427:chronicles:c55d826, author = {Eli Salem}, title = {{The chronicles of Bumblebee: The Hook, the Bee, and the Trickbot connection}}, date = {2022-04-27}, organization = {Medium elis531989}, url = {https://elis531989.medium.com/the-chronicles-of-bumblebee-the-hook-the-bee-and-the-trickbot-connection-686379311056}, language = {English}, urldate = {2022-04-29} } The chronicles of Bumblebee: The Hook, the Bee, and the Trickbot connection
BumbleBee TrickBot
2022-04-14CynetMax Malyutin
@online{malyutin:20220414:orion:9db6814, author = {Max Malyutin}, title = {{Orion Threat Alert: Flight of the BumbleBee}}, date = {2022-04-14}, organization = {Cynet}, url = {https://www.cynet.com/orion-threat-alert-flight-of-the-bumblebee/}, language = {English}, urldate = {2022-05-04} } Orion Threat Alert: Flight of the BumbleBee
BumbleBee Cobalt Strike
2022-03-17GoogleVladislav Stolyarov, Benoit Sevens, Google Threat Analysis Group
@online{stolyarov:20220317:exposing:f818c6d, author = {Vladislav Stolyarov and Benoit Sevens and Google Threat Analysis Group}, title = {{Exposing initial access broker with ties to Conti}}, date = {2022-03-17}, organization = {Google}, url = {https://blog.google/threat-analysis-group/exposing-initial-access-broker-ties-conti/}, language = {English}, urldate = {2022-03-18} } Exposing initial access broker with ties to Conti
BazarBackdoor BumbleBee Cobalt Strike Conti
2022-03-17GoogleVladislav Stolyarov, Benoit Sevens
@online{stolyarov:20220317:exposing:5f565b6, author = {Vladislav Stolyarov and Benoit Sevens}, title = {{Exposing initial access broker with ties to Conti}}, date = {2022-03-17}, organization = {Google}, url = {https://blog.google/threat-analysis-group/exposing-initial-access-broker-ties-conti}, language = {English}, urldate = {2022-05-17} } Exposing initial access broker with ties to Conti
BazarBackdoor BumbleBee Conti EXOTIC LILY
Yara Rules
[TLP:WHITE] win_bumblebee_auto (20230125 | Detects win.bumblebee.)
rule win_bumblebee_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.bumblebee."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.bumblebee"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 8b4510 8b4808 8b5104 52 ff15???????? 8945f8 837df800 }
            // n = 7, score = 2100
            //   8b4510               | dec                 eax
            //   8b4808               | mov                 ecx, ebx
            //   8b5104               | test                eax, eax
            //   52                   | jle                 0x138f
            //   ff15????????         |                     
            //   8945f8               | test                eax, eax
            //   837df800             | jle                 0x13ae

        $sequence_1 = { 488943f8 eb08 e8???????? 488bd8 4c8b4608 4d3bc0 4d85c0 }
            // n = 7, score = 2100
            //   488943f8             | dec                 eax
            //   eb08                 | test                eax, eax
            //   e8????????           |                     
            //   488bd8               | jne                 0x1309
            //   4c8b4608             | dec                 eax
            //   4d3bc0               | lea                 edx, [0x6f088]
            //   4d85c0               | jmp                 0x1316

        $sequence_2 = { 8701 b801000000 eb5b 8b442440 486bc03c 41b904000000 41b800300000 }
            // n = 7, score = 2100
            //   8701                 | mov                 dword ptr [esp + 0x38], eax
            //   b801000000           | cmp                 byte ptr [ecx + 0x10], 0
            //   eb5b                 | je                  0x185f
            //   8b442440             | mov                 byte ptr [ecx + 0x10], 0
            //   486bc03c             | mov                 byte ptr [ecx + 0x10], 4
            //   41b904000000         | jmp                 0x18c2
            //   41b800300000         | dec                 eax

        $sequence_3 = { 4863442438 488b8c24a0010000 488b0cc1 ff15???????? 89442448 8b442444 }
            // n = 6, score = 2100
            //   4863442438           | dec                 ecx
            //   488b8c24a0010000     | add                 edx, ecx
            //   488b0cc1             | jmp                 edx
            //   ff15????????         |                     
            //   89442448             | dec                 esp
            //   8b442444             | mov                 dword ptr [esp + 0x40], eax

        $sequence_4 = { 7506 c645fe01 eb0b 8b4df0 83c101 894df0 eb9d }
            // n = 7, score = 2100
            //   7506                 | jb                  0x1e3
            //   c645fe01             | imul                eax, edx, 0x64
            //   eb0b                 | lea                 edi, [edx + edx]
            //   8b4df0               | inc                 esp
            //   83c101               | sub                 ecx, eax
            //   894df0               | inc                 ebp
            //   eb9d                 | add                 ecx, ecx

        $sequence_5 = { e8???????? 488b442450 488d0c40 48c1e105 488b442440 480308 0f1001 }
            // n = 7, score = 2100
            //   e8????????           |                     
            //   488b442450           | or                  eax, eax
            //   488d0c40             | dec                 eax
            //   48c1e105             | mov                 dword ptr [esi + 8], ecx
            //   488b442440           | inc                 ecx
            //   480308               | cmp                 ecx, 0x20
            //   0f1001               | jbe                 0x18f3

        $sequence_6 = { 81c200002000 3955f0 760a 8b45fc 50 ff15???????? eb0a }
            // n = 7, score = 2100
            //   81c200002000         | mov                 esi, dword ptr [ebp - 0x48]
            //   3955f0               | dec                 eax
            //   760a                 | mov                 edi, dword ptr [ebp - 0x50]
            //   8b45fc               | dec                 esp
            //   50                   | mov                 dword ptr [ebp - 0x18], esi
            //   ff15????????         |                     
            //   eb0a                 | dec                 eax

        $sequence_7 = { 7507 c644243101 eb0f 8b442438 ffc0 89442438 }
            // n = 6, score = 2100
            //   7507                 | sub                 edi, ecx
            //   c644243101           | dec                 ecx
            //   eb0f                 | lea                 edx, [edi + ebp]
            //   8b442438             | inc                 esp
            //   ffc0                 | mov                 eax, ecx
            //   89442438             | jb                  0x14e

        $sequence_8 = { 486bc93e 488d440804 4889442448 488b442448 4883c012 41b82c000000 b290 }
            // n = 7, score = 2100
            //   486bc93e             | dec                 eax
            //   488d440804           | mov                 dword ptr [esp + 0x28], eax
            //   4889442448           | cmp                 dword ptr [ecx + 0x8c], 0
            //   488b442448           | inc                 esp
            //   4883c012             | mov                 esi, edx
            //   41b82c000000         | dec                 eax
            //   b290                 | mov                 ebx, ecx

        $sequence_9 = { 488d8a38000000 4883c108 e9???????? 488d8a38000000 e9???????? 488d8a38000000 4883c108 }
            // n = 7, score = 2100
            //   488d8a38000000       | dec                 eax
            //   4883c108             | mov                 dword ptr [ebx], eax
            //   e9????????           |                     
            //   488d8a38000000       | inc                 eax
            //   e9????????           |                     
            //   488d8a38000000       | test                bh, 1
            //   4883c108             | je                  0x1a07

    condition:
        7 of them and filesize < 4825088
}
[TLP:WHITE] win_bumblebee_w0   (20220330 | BumbleBee / win.bumblebee)
rule win_bumblebee_w0 {
    meta:
        author = "@AndreGironda"
        description = "BumbleBee / win.bumblebee"
        reference_md5 = "e6a046d1baa7cd2100bdf48102b8a144"
	    date = "March 29, 2022"
	    tlp = "White"

    malpedia_rule_date = "20220330"
    malpedia_hash = ""
	malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.bumblebee"
	malpedia_version = "20220330"
	malpedia_license = "CC BY-NC-SA 4.0"
	malpedia_sharing = "TLP:WHITE"
    strings:
	$hex_140001d53 = { 48 8b 05 06 44 00 00 41 81 ea 06 28 00 00 49 31 80 48 02 00 00 49 8b 80 c8 00 00 00 48 05 28 01 00 00 48 01 41 08 49 8b }
	$hex_18000927a = { 48 8d 4c 24 50 e8 cc cc ff ff 90 4c 8d 45 b0 48 8d 54 24 50 48 8d 8d 00 01 00 00 e8 26 d3 ff ff 90 48 8b 44 24 68 48 83 f8 10 72 4a 48 ff c0 48 }
    condition:
        any of them
}
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