SYMBOLCOMMON_NAMEaka. SYNONYMS
win.rokrat (Back to overview)

RokRAT

aka: DOGCALL

Actor(s): APT37


It is a backdoor commonly distributed as an encoded
binary file downloaded and decrypted by shellcode following the
exploitation of weaponized documents. DOGCALL is capable of
capturing screenshots, logging keystrokes, evading analysis with
anti-virtual machine detections, and leveraging cloud storage APIs
such as Cloud, Box, Dropbox, and Yandex.

References
2022-04-28PWCPWC UK
@techreport{uk:20220428:cyber:c43873f, author = {PWC UK}, title = {{Cyber Threats 2021: A Year in Retrospect (Annex)}}, date = {2022-04-28}, institution = {PWC}, url = {https://www.pwc.com/gx/en/issues/cybersecurity/cyber-threat-intelligence/cyber-year-in-retrospect/yir-cyber-threats-annex-download.pdf}, language = {English}, urldate = {2022-04-29} } Cyber Threats 2021: A Year in Retrospect (Annex)
Cobalt Strike Conti PlugX RokRAT Red Menshen
2021-08-24VolexityDamien Cash, Josh Grunzweig, Steven Adair, Thomas Lancaster
@online{cash:20210824:north:aab532f, author = {Damien Cash and Josh Grunzweig and Steven Adair and Thomas Lancaster}, title = {{North Korean BLUELIGHT Special: InkySquid Deploys RokRAT}}, date = {2021-08-24}, organization = {Volexity}, url = {https://www.volexity.com/blog/2021/08/24/north-korean-bluelight-special-inkysquid-deploys-rokrat/}, language = {English}, urldate = {2021-08-31} } North Korean BLUELIGHT Special: InkySquid Deploys RokRAT
RokRAT
2021-07-14Medium s2wlabJaeki Kim
@online{kim:20210714:matryoshka:6c8d267, author = {Jaeki Kim}, title = {{Matryoshka : Variant of ROKRAT, APT37 (Scarcruft)}}, date = {2021-07-14}, organization = {Medium s2wlab}, url = {https://medium.com/s2wlab/matryoshka-variant-of-rokrat-apt37-scarcruft-69774ea7bf48}, language = {English}, urldate = {2021-07-20} } Matryoshka : Variant of ROKRAT, APT37 (Scarcruft)
RokRAT
2021-02-18PTSecurityPTSecurity
@online{ptsecurity:20210218:httpswwwptsecuritycomwwenanalyticsantisandboxtechniques:d616c1f, author = {PTSecurity}, title = {{https://www.ptsecurity.com/ww-en/analytics/antisandbox-techniques/}}, date = {2021-02-18}, organization = {PTSecurity}, url = {https://www.ptsecurity.com/ww-en/analytics/antisandbox-techniques/}, language = {English}, urldate = {2021-02-25} } https://www.ptsecurity.com/ww-en/analytics/antisandbox-techniques/
Poet RAT Gravity RAT Ketrican Okrum OopsIE Remcos RogueRobinNET RokRAT SmokeLoader
2021-01-06MalwarebytesHossein Jazi
@online{jazi:20210106:retrohunting:65f1492, author = {Hossein Jazi}, title = {{Retrohunting APT37: North Korean APT used VBA self decode technique to inject RokRat}}, date = {2021-01-06}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/threat-analysis/2021/01/retrohunting-apt37-north-korean-apt-used-vba-self-decode-technique-to-inject-rokrat/}, language = {English}, urldate = {2021-01-11} } Retrohunting APT37: North Korean APT used VBA self decode technique to inject RokRat
RokRAT
2020-06-16IBMIBM Security X-Force® Incident Responseand Intelligence Services (IRIS)
@online{iris:20200616:cloud:e15a0d5, author = {IBM Security X-Force® Incident Responseand Intelligence Services (IRIS)}, title = {{Cloud ThreatLandscape Report 2020}}, date = {2020-06-16}, organization = {IBM}, url = {https://www.ibm.com/downloads/cas/Z81AVOY7}, language = {English}, urldate = {2020-06-17} } Cloud ThreatLandscape Report 2020
QNAPCrypt RokRAT
2020-05-21PICUS SecuritySüleyman Özarslan
@online{zarslan:20200521:t1055:4400f98, author = {Süleyman Özarslan}, title = {{T1055 Process Injection}}, date = {2020-05-21}, organization = {PICUS Security}, url = {https://www.picussecurity.com/blog/picus-10-critical-mitre-attck-techniques-t1055-process-injection}, language = {English}, urldate = {2020-06-03} } T1055 Process Injection
BlackEnergy Cardinal RAT Downdelph Emotet Kazuar RokRAT SOUNDBITE
2020-03-30Kaspersky SASSeongsu Park
@techreport{park:20200330:behind:7c5548e, author = {Seongsu Park}, title = {{Behind the Mask of ScarCruft}}, date = {2020-03-30}, institution = {Kaspersky SAS}, url = {https://github.com/ssp4rk/slides/blob/master/2019SAS_Behind_of_the_Mask_of_ScarCruft.pdf}, language = {English}, urldate = {2020-03-31} } Behind the Mask of ScarCruft
RokRAT
2020-03-03PWC UKPWC UK
@techreport{uk:20200303:cyber:1f1eef0, author = {PWC UK}, title = {{Cyber Threats 2019:A Year in Retrospect}}, date = {2020-03-03}, institution = {PWC UK}, url = {https://www.pwc.co.uk/cyber-security/assets/cyber-threats-2019-retrospect.pdf}, language = {English}, urldate = {2020-03-03} } Cyber Threats 2019:A Year in Retrospect
KevDroid MESSAGETAP magecart AndroMut Cobalt Strike CobInt Crimson RAT DNSpionage Dridex Dtrack Emotet FlawedAmmyy FlawedGrace FriedEx Gandcrab Get2 GlobeImposter Grateful POS ISFB Kazuar LockerGoga Nokki QakBot Ramnit REvil Rifdoor RokRAT Ryuk shadowhammer ShadowPad Shifu Skipper StoneDrill Stuxnet TrickBot Winnti ZeroCleare Axiom
2020-02-19LexfoLexfo
@techreport{lexfo:20200219:lazarus:f293c37, author = {Lexfo}, title = {{The Lazarus Constellation A study on North Korean malware}}, date = {2020-02-19}, institution = {Lexfo}, url = {https://blog.lexfo.fr/ressources/Lexfo-WhitePaper-The_Lazarus_Constellation.pdf}, language = {English}, urldate = {2020-03-11} } The Lazarus Constellation A study on North Korean malware
FastCash AppleJeus BADCALL Bankshot Brambul Dtrack Duuzer DYEPACK ELECTRICFISH HARDRAIN Hermes HOPLIGHT Joanap KEYMARBLE Kimsuky MimiKatz MyDoom NACHOCHEESE NavRAT PowerRatankba RokRAT Sierra(Alfa,Bravo, ...) Volgmer WannaCryptor
2019-08-12Kindred SecurityKindred Security
@online{security:20190812:overview:0726c0a, author = {Kindred Security}, title = {{An Overview of Public Platform C2’s}}, date = {2019-08-12}, organization = {Kindred Security}, url = {https://kindredsec.wordpress.com/2019/08/12/an-overview-of-public-platform-c2s/}, language = {English}, urldate = {2021-07-20} } An Overview of Public Platform C2’s
HTML5 Encoding LOWBALL Makadocs MiniDuke RogueRobinNET RokRAT
2019-08-01Kaspersky LabsGReAT
@online{great:20190801:trends:5e25d5b, author = {GReAT}, title = {{APT trends report Q2 2019}}, date = {2019-08-01}, organization = {Kaspersky Labs}, url = {https://securelist.com/apt-trends-report-q2-2019/91897/}, language = {English}, urldate = {2020-08-13} } APT trends report Q2 2019
ZooPark magecart POWERSTATS Chaperone COMpfun EternalPetya FinFisher RAT HawkEye Keylogger HOPLIGHT Microcin NjRAT Olympic Destroyer PLEAD RokRAT Triton Zebrocy Microcin
2019-05-13Kaspersky LabsGReAT
@online{great:20190513:scarcruft:eb8bb1c, author = {GReAT}, title = {{ScarCruft continues to evolve, introduces Bluetooth harvester}}, date = {2019-05-13}, organization = {Kaspersky Labs}, url = {https://securelist.com/scarcruft-continues-to-evolve-introduces-bluetooth-harvester/90729/}, language = {English}, urldate = {2019-12-20} } ScarCruft continues to evolve, introduces Bluetooth harvester
Konni RokRAT UACMe APT37
2018-11-16Kim Yejun
@online{yejun:20181116:return:31caa6a, author = {Kim Yejun}, title = {{Return to ROKRAT!! (feat. FAAAA...Sad...)}}, date = {2018-11-16}, url = {http://v3lo.tistory.com/24}, language = {Japanese}, urldate = {2019-11-26} } Return to ROKRAT!! (feat. FAAAA...Sad...)
RokRAT
2018-10-03IntezerJay Rosenberg
@online{rosenberg:20181003:apt37:93a9100, author = {Jay Rosenberg}, title = {{APT37: Final1stspy Reaping the FreeMilk}}, date = {2018-10-03}, organization = {Intezer}, url = {https://www.intezer.com/apt37-final1stspy-reaping-the-freemilk/}, language = {English}, urldate = {2020-01-09} } APT37: Final1stspy Reaping the FreeMilk
Final1stSpy RokRAT
2018-02-27VMWare Carbon BlackJared Myers
@online{myers:20180227:threat:11a58a0, author = {Jared Myers}, title = {{Threat Analysis: ROKRAT Malware}}, date = {2018-02-27}, organization = {VMWare Carbon Black}, url = {https://www.carbonblack.com/2018/02/27/threat-analysis-rokrat-malware/}, language = {English}, urldate = {2019-10-23} } Threat Analysis: ROKRAT Malware
RokRAT
2018-02-20FireEyeFireEye
@techreport{fireeye:20180220:apt37:bc54ada, author = {FireEye}, title = {{APT37 (REAPER) The Overlooked North Korean Actor}}, date = {2018-02-20}, institution = {FireEye}, url = {https://www2.fireeye.com/rs/848-DID-242/images/rpt_APT37.pdf}, language = {English}, urldate = {2021-11-03} } APT37 (REAPER) The Overlooked North Korean Actor
PoorWeb RokRAT APT37
2018-01-16Cisco TalosWarren Mercer, Paul Rascagnères
@online{mercer:20180116:korea:02f4c3c, author = {Warren Mercer and Paul Rascagnères}, title = {{Korea In The Crosshairs}}, date = {2018-01-16}, organization = {Cisco Talos}, url = {https://blog.talosintelligence.com/2018/01/korea-in-crosshairs.html}, language = {English}, urldate = {2020-04-06} } Korea In The Crosshairs
Freenki Loader RokRAT APT37
2018-01-16Cisco TalosWarren Mercer, Paul Rascagnères, Jungsoo An
@online{mercer:20180116:korea:f462331, author = {Warren Mercer and Paul Rascagnères and Jungsoo An}, title = {{Korea In The Crosshairs}}, date = {2018-01-16}, organization = {Cisco Talos}, url = {http://blog.talosintelligence.com/2018/01/korea-in-crosshairs.html}, language = {English}, urldate = {2020-01-06} } Korea In The Crosshairs
Freenki Loader PoohMilk Loader RokRAT APT37
2017-11-28CiscoWarren Mercer, Paul Rascagnères, Jungsoo An
@online{mercer:20171128:rokrat:dec34fb, author = {Warren Mercer and Paul Rascagnères and Jungsoo An}, title = {{ROKRAT Reloaded}}, date = {2017-11-28}, organization = {Cisco}, url = {http://blog.talosintelligence.com/2017/11/ROKRAT-Reloaded.html}, language = {English}, urldate = {2019-11-22} } ROKRAT Reloaded
RokRAT
2017-04-03Cisco TalosWarren Mercer, Paul Rascagnères, Matthew Molyett
@online{mercer:20170403:introducing:d17f359, author = {Warren Mercer and Paul Rascagnères and Matthew Molyett}, title = {{Introducing ROKRAT}}, date = {2017-04-03}, organization = {Cisco Talos}, url = {http://blog.talosintelligence.com/2017/04/introducing-rokrat.html}, language = {English}, urldate = {2020-01-09} } Introducing ROKRAT
RokRAT
2017Cisco TalosWarren Mercer, Paul Rascagnères
@techreport{mercer:2017:introducing:04e2ff1, author = {Warren Mercer and Paul Rascagnères}, title = {{Introducing ROKRAT}}, date = {2017}, institution = {Cisco Talos}, url = {http://s3.amazonaws.com/talos-intelligence-site/production/document_files/files/000/002/191/original/Talos_RokRatWhitePaper.pdf}, language = {English}, urldate = {2019-12-20} } Introducing ROKRAT
RokRAT
Yara Rules
[TLP:WHITE] win_rokrat_auto (20220516 | Detects win.rokrat.)
rule win_rokrat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-05-16"
        version = "1"
        description = "Detects win.rokrat."
        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.rokrat"
        malpedia_rule_date = "20220513"
        malpedia_hash = "7f4b2229e6ae614d86d74917f6d5b41890e62a26"
        malpedia_version = "20220516"
        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 = { 33c5 8945fc 56 57 ff15???????? 50 e8???????? }
            // n = 7, score = 300
            //   33c5                 | xor                 eax, ebp
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   56                   | push                esi
            //   57                   | push                edi
            //   ff15????????         |                     
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_1 = { 668910 e8???????? 83ec18 c745fc00000000 8bcc 8965ec }
            // n = 6, score = 300
            //   668910               | mov                 word ptr [eax], dx
            //   e8????????           |                     
            //   83ec18               | sub                 esp, 0x18
            //   c745fc00000000       | mov                 dword ptr [ebp - 4], 0
            //   8bcc                 | mov                 ecx, esp
            //   8965ec               | mov                 dword ptr [ebp - 0x14], esp

        $sequence_2 = { 83ec18 c645fc06 8bcc 8965e8 }
            // n = 4, score = 300
            //   83ec18               | sub                 esp, 0x18
            //   c645fc06             | mov                 byte ptr [ebp - 4], 6
            //   8bcc                 | mov                 ecx, esp
            //   8965e8               | mov                 dword ptr [ebp - 0x18], esp

        $sequence_3 = { 0f99c0 8d0445ffffffff eb03 83c8ff 8b4df4 64890d00000000 59 }
            // n = 7, score = 300
            //   0f99c0               | setns               al
            //   8d0445ffffffff       | lea                 eax, [eax*2 - 1]
            //   eb03                 | jmp                 5
            //   83c8ff               | or                  eax, 0xffffffff
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx
            //   59                   | pop                 ecx

        $sequence_4 = { 56 8bf1 0fbe4608 83e801 }
            // n = 4, score = 300
            //   56                   | push                esi
            //   8bf1                 | mov                 esi, ecx
            //   0fbe4608             | movsx               eax, byte ptr [esi + 8]
            //   83e801               | sub                 eax, 1

        $sequence_5 = { 64a300000000 8bf1 8975f0 83ec18 }
            // n = 4, score = 300
            //   64a300000000         | mov                 dword ptr fs:[0], eax
            //   8bf1                 | mov                 esi, ecx
            //   8975f0               | mov                 dword ptr [ebp - 0x10], esi
            //   83ec18               | sub                 esp, 0x18

        $sequence_6 = { 50 ff15???????? e8???????? 40 }
            // n = 4, score = 300
            //   50                   | push                eax
            //   ff15????????         |                     
            //   e8????????           |                     
            //   40                   | inc                 eax

        $sequence_7 = { 83ec18 c645fc07 8bcc 8965e4 }
            // n = 4, score = 300
            //   83ec18               | sub                 esp, 0x18
            //   c645fc07             | mov                 byte ptr [ebp - 4], 7
            //   8bcc                 | mov                 ecx, esp
            //   8965e4               | mov                 dword ptr [ebp - 0x1c], esp

        $sequence_8 = { 50 8bcf e8???????? 8d4538 3bd8 740c 6aff }
            // n = 7, score = 300
            //   50                   | push                eax
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   8d4538               | lea                 eax, [ebp + 0x38]
            //   3bd8                 | cmp                 ebx, eax
            //   740c                 | je                  0xe
            //   6aff                 | push                -1

        $sequence_9 = { e9???????? 8b4e08 8d442440 50 }
            // n = 4, score = 100
            //   e9????????           |                     
            //   8b4e08               | mov                 ecx, dword ptr [esi + 8]
            //   8d442440             | lea                 eax, [esp + 0x40]
            //   50                   | push                eax

        $sequence_10 = { e9???????? 8b4d00 8d44242c 50 }
            // n = 4, score = 100
            //   e9????????           |                     
            //   8b4d00               | mov                 ecx, dword ptr [ebp]
            //   8d44242c             | lea                 eax, [esp + 0x2c]
            //   50                   | push                eax

        $sequence_11 = { e9???????? 8b4c2434 51 68???????? 56 }
            // n = 5, score = 100
            //   e9????????           |                     
            //   8b4c2434             | mov                 ecx, dword ptr [esp + 0x34]
            //   51                   | push                ecx
            //   68????????           |                     
            //   56                   | push                esi

        $sequence_12 = { e9???????? 8b4d5c 8b8104020000 8d5104 8db104010000 83f804 7214 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   8b4d5c               | mov                 ecx, dword ptr [ebp + 0x5c]
            //   8b8104020000         | mov                 eax, dword ptr [ecx + 0x204]
            //   8d5104               | lea                 edx, [ecx + 4]
            //   8db104010000         | lea                 esi, [ecx + 0x104]
            //   83f804               | cmp                 eax, 4
            //   7214                 | jb                  0x16

        $sequence_13 = { e9???????? 8b4c2424 52 50 68???????? 55 c781f801000001000000 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   8b4c2424             | mov                 ecx, dword ptr [esp + 0x24]
            //   52                   | push                edx
            //   50                   | push                eax
            //   68????????           |                     
            //   55                   | push                ebp
            //   c781f801000001000000     | mov    dword ptr [ecx + 0x1f8], 1

        $sequence_14 = { e9???????? 8b4c2444 83c602 6a00 }
            // n = 4, score = 100
            //   e9????????           |                     
            //   8b4c2444             | mov                 ecx, dword ptr [esp + 0x44]
            //   83c602               | add                 esi, 2
            //   6a00                 | push                0

        $sequence_15 = { e9???????? 8b4c2428 8b7c2420 8d442444 }
            // n = 4, score = 100
            //   e9????????           |                     
            //   8b4c2428             | mov                 ecx, dword ptr [esp + 0x28]
            //   8b7c2420             | mov                 edi, dword ptr [esp + 0x20]
            //   8d442444             | lea                 eax, [esp + 0x44]

    condition:
        7 of them and filesize < 2932736
}
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