SYMBOLCOMMON_NAMEaka. SYNONYMS
win.cutwail (Back to overview)

Cutwail

Actor(s): NARWHAL SPIDER


There is no description at this point.

References
2021-03-11IBMDave McMillen, Limor Kessem
@online{mcmillen:20210311:dridex:1140b01, author = {Dave McMillen and Limor Kessem}, title = {{Dridex Campaign Propelled by Cutwail Botnet and Poisonous PowerShell Scripts}}, date = {2021-03-11}, organization = {IBM}, url = {https://securityintelligence.com/dridex-campaign-propelled-by-cutwail-botnet-and-powershell/}, language = {English}, urldate = {2021-03-12} } Dridex Campaign Propelled by Cutwail Botnet and Poisonous PowerShell Scripts
Cutwail Dridex
2021-02-23CrowdStrikeCrowdStrike
@techreport{crowdstrike:20210223:2021:bf5bc4f, author = {CrowdStrike}, title = {{2021 Global Threat Report}}, date = {2021-02-23}, institution = {CrowdStrike}, url = {https://go.crowdstrike.com/rs/281-OBQ-266/images/Report2021GTR.pdf}, language = {English}, urldate = {2021-02-25} } 2021 Global Threat Report
RansomEXX Amadey Anchor Avaddon BazarBackdoor Clop Cobalt Strike Conti Cutwail DanaBot DarkSide DoppelPaymer Dridex Egregor Emotet Hakbit IcedID JSOutProx KerrDown LockBit Mailto Maze MedusaLocker Mespinoza Mount Locker NedDnLoader Nemty Pay2Key PlugX Pushdo PwndLocker PyXie QakBot Quasar RAT RagnarLocker Ragnarok RansomEXX REvil Ryuk Sekhmet ShadowPad SmokeLoader Snake SUNBURST SunCrypt TEARDROP TrickBot WastedLocker Winnti Zloader KNOCKOUT SPIDER OUTLAW SPIDER RIDDLE SPIDER SOLAR SPIDER VIKING SPIDER
2021-01-06MimecastMatthew Gardiner
@online{gardiner:20210106:how:b9e3a36, author = {Matthew Gardiner}, title = {{How to Slam a Door on the Cutwail Botnet: Enforce DMARC}}, date = {2021-01-06}, organization = {Mimecast}, url = {https://www.mimecast.com/blog/how-to-slam-a-door-on-the-cutwail-botnet-enforce-dmarc/}, language = {English}, urldate = {2021-01-27} } How to Slam a Door on the Cutwail Botnet: Enforce DMARC
Cutwail
2020-09-07Github (pan-unit42)Brad Duncan
@online{duncan:20200907:collection:09ab7be, author = {Brad Duncan}, title = {{Collection of recent Dridex IOCs}}, date = {2020-09-07}, organization = {Github (pan-unit42)}, url = {https://github.com/pan-unit42/tweets/blob/master/2020-09-07-Dridex-IOCs.txt}, language = {English}, urldate = {2020-09-15} } Collection of recent Dridex IOCs
Cutwail Dridex
2020-07-17CERT-FRCERT-FR
@techreport{certfr:20200717:malware:5c58cdf, author = {CERT-FR}, title = {{The Malware Dridex: Origins and Uses}}, date = {2020-07-17}, institution = {CERT-FR}, url = {https://www.cert.ssi.gouv.fr/uploads/CERTFR-2020-CTI-008.pdf}, language = {English}, urldate = {2020-07-20} } The Malware Dridex: Origins and Uses
Andromeda CryptoLocker Cutwail DoppelPaymer Dridex Emotet FriedEx Gameover P2P Gandcrab ISFB Murofet Necurs Predator The Thief Zeus
2020-03-15The Shadowserver FoundationShadowserver Foundation
@online{foundation:20200315:has:80a92d5, author = {Shadowserver Foundation}, title = {{Has The Sun Set On The Necurs Botnet?}}, date = {2020-03-15}, organization = {The Shadowserver Foundation}, url = {https://www.shadowserver.org/news/has-the-sun-set-on-the-necurs-botnet/}, language = {English}, urldate = {2020-03-17} } Has The Sun Set On The Necurs Botnet?
Andromeda Cutwail Kelihos Necurs Pushdo
2020-03-04CrowdStrikeCrowdStrike
@techreport{crowdstrike:20200304:2020:818c85f, author = {CrowdStrike}, title = {{2020 CrowdStrike Global Threat Report}}, date = {2020-03-04}, institution = {CrowdStrike}, url = {https://go.crowdstrike.com/rs/281-OBQ-266/images/Report2020CrowdStrikeGlobalThreatReport.pdf}, language = {English}, urldate = {2020-07-24} } 2020 CrowdStrike Global Threat Report
MESSAGETAP More_eggs 8.t Dropper Anchor BabyShark BadNews Clop Cobalt Strike CobInt Cobra Carbon System Cutwail DanaBot Dharma DoppelDridex DoppelPaymer Dridex Emotet FlawedAmmyy FriedEx Gandcrab Get2 IcedID ISFB KerrDown LightNeuron LockerGoga Maze MECHANICAL Necurs Nokki Outlook Backdoor Phobos Predator The Thief QakBot REvil RobinHood Ryuk SDBbot Skipper SmokeLoader TerraRecon TerraStealer TerraTV TinyLoader TrickBot vidar Winnti ANTHROPOID SPIDER APT31 APT39 BlackTech BuhTrap Charming Kitten CLOCKWORK SPIDER DOPPEL SPIDER FIN7 Gamaredon Group Leviathan MONTY SPIDER Mustang Panda NARWHAL SPIDER NOCTURNAL SPIDER PINCHY SPIDER Pirate Panda SALTY SPIDER SCULLY SPIDER SMOKY SPIDER Thrip VENOM SPIDER
2020-01-17Ken Sajo, Yasuhiro Takeda, Yusuke Niwa
@techreport{sajo:20200117:battle:2b146f5, author = {Ken Sajo and Yasuhiro Takeda and Yusuke Niwa}, title = {{Battle Against Ursnif Malspam Campaign targeting Japan}}, date = {2020-01-17}, institution = {}, url = {https://jsac.jpcert.or.jp/archive/2020/pdf/JSAC2020_5_sajo-takeda-niwa_en.pdf}, language = {English}, urldate = {2020-01-17} } Battle Against Ursnif Malspam Campaign targeting Japan
Cutwail ISFB TrickBot UrlZone
2020SecureworksSecureWorks
@online{secureworks:2020:gold:65f4550, author = {SecureWorks}, title = {{GOLD ESSEX}}, date = {2020}, organization = {Secureworks}, url = {http://www.secureworks.com/research/threat-profiles/gold-essex}, language = {English}, urldate = {2020-05-27} } GOLD ESSEX
Cutwail Pony Pushdo NARWHAL SPIDER
2019-09-09McAfeeThomas Roccia, Marc Rivero López, Chintan Shah
@online{roccia:20190909:evolution:baf3b6c, author = {Thomas Roccia and Marc Rivero López and Chintan Shah}, title = {{Evolution of Malware Sandbox Evasion Tactics – A Retrospective Study}}, date = {2019-09-09}, organization = {McAfee}, url = {https://www.mcafee.com/blogs/other-blogs/mcafee-labs/evolution-of-malware-sandbox-evasion-tactics-a-retrospective-study/}, language = {English}, urldate = {2020-08-30} } Evolution of Malware Sandbox Evasion Tactics – A Retrospective Study
Cutwail Dridex Dyre Kovter Locky Phorpiex Simda
2010MandiantEro Carrera, Peter Silberman
@techreport{carrera:2010:state:687e608, author = {Ero Carrera and Peter Silberman}, title = {{State of Malware: Family Ties}}, date = {2010}, institution = {Mandiant}, url = {https://web.archive.org/web/20160616170611/https://media.blackhat.com/bh-eu-10/presentations/Carrera_Silberman/BlackHat-EU-2010-Carrera-Silberman-State-of-Malware-slides.pdf}, language = {English}, urldate = {2021-05-11} } State of Malware: Family Ties
Bredolab Conficker Cutwail KoobFace Kraken Poison Ivy Rustock Sinowal Szribi Zeus
Yara Rules
[TLP:WHITE] win_cutwail_auto (20211008 | Detects win.cutwail.)
rule win_cutwail_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-10-07"
        version = "1"
        description = "Detects win.cutwail."
        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.cutwail"
        malpedia_rule_date = "20211007"
        malpedia_hash = "e5b790e0f888f252d49063a1251ca60ec2832535"
        malpedia_version = "20211008"
        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 = { eb0e 80fa40 740d ff4508 }
            // n = 4, score = 100
            //   eb0e                 | jmp                 0x10
            //   80fa40               | cmp                 dl, 0x40
            //   740d                 | je                  0xf
            //   ff4508               | inc                 dword ptr [ebp + 8]

        $sequence_1 = { 8955fc 8b4510 2b45f8 894510 eb9a }
            // n = 5, score = 100
            //   8955fc               | mov                 dword ptr [ebp - 4], edx
            //   8b4510               | mov                 eax, dword ptr [ebp + 0x10]
            //   2b45f8               | sub                 eax, dword ptr [ebp - 8]
            //   894510               | mov                 dword ptr [ebp + 0x10], eax
            //   eb9a                 | jmp                 0xffffff9c

        $sequence_2 = { 8b048d30f62004 8902 8b8d44feffff 8b9548feffff }
            // n = 4, score = 100
            //   8b048d30f62004       | mov                 eax, dword ptr [ecx*4 + 0x420f630]
            //   8902                 | mov                 dword ptr [edx], eax
            //   8b8d44feffff         | mov                 ecx, dword ptr [ebp - 0x1bc]
            //   8b9548feffff         | mov                 edx, dword ptr [ebp - 0x1b8]

        $sequence_3 = { 8d8570feffff 50 6802020000 e8???????? 85c0 0f8572020000 }
            // n = 6, score = 100
            //   8d8570feffff         | lea                 eax, dword ptr [ebp - 0x190]
            //   50                   | push                eax
            //   6802020000           | push                0x202
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   0f8572020000         | jne                 0x278

        $sequence_4 = { ff15???????? 393d???????? 0f8588feffff ff35???????? }
            // n = 4, score = 100
            //   ff15????????         |                     
            //   393d????????         |                     
            //   0f8588feffff         | jne                 0xfffffe8e
            //   ff35????????         |                     

        $sequence_5 = { ebc1 8b5508 03550c c60200 c745fc01000000 8b45fc 8be5 }
            // n = 7, score = 100
            //   ebc1                 | jmp                 0xffffffc3
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   03550c               | add                 edx, dword ptr [ebp + 0xc]
            //   c60200               | mov                 byte ptr [edx], 0
            //   c745fc01000000       | mov                 dword ptr [ebp - 4], 1
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   8be5                 | mov                 esp, ebp

        $sequence_6 = { 3b0d???????? 0f832e010000 8b0488 85c0 }
            // n = 4, score = 100
            //   3b0d????????         |                     
            //   0f832e010000         | jae                 0x134
            //   8b0488               | mov                 eax, dword ptr [eax + ecx*4]
            //   85c0                 | test                eax, eax

        $sequence_7 = { 50 6a58 8d4da2 e8???????? }
            // n = 4, score = 100
            //   50                   | push                eax
            //   6a58                 | push                0x58
            //   8d4da2               | lea                 ecx, dword ptr [ebp - 0x5e]
            //   e8????????           |                     

        $sequence_8 = { 8d95f8fdffff 52 e8???????? 83c40c 6a64 e8???????? 83c404 }
            // n = 7, score = 100
            //   8d95f8fdffff         | lea                 edx, dword ptr [ebp - 0x208]
            //   52                   | push                edx
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   6a64                 | push                0x64
            //   e8????????           |                     
            //   83c404               | add                 esp, 4

        $sequence_9 = { 5e 39750c 765f 2bcf 8975f4 }
            // n = 5, score = 100
            //   5e                   | pop                 esi
            //   39750c               | cmp                 dword ptr [ebp + 0xc], esi
            //   765f                 | jbe                 0x61
            //   2bcf                 | sub                 ecx, edi
            //   8975f4               | mov                 dword ptr [ebp - 0xc], esi

        $sequence_10 = { ff15???????? 6a00 ff15???????? 8b45f0 33d2 b93d000000 }
            // n = 6, score = 100
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   33d2                 | xor                 edx, edx
            //   b93d000000           | mov                 ecx, 0x3d

        $sequence_11 = { 0f832efeffff 68f4010000 ff15???????? 53 6a4a }
            // n = 5, score = 100
            //   0f832efeffff         | jae                 0xfffffe34
            //   68f4010000           | push                0x1f4
            //   ff15????????         |                     
            //   53                   | push                ebx
            //   6a4a                 | push                0x4a

        $sequence_12 = { 83bd6cfeffff00 7509 c68563feffff01 eb77 83bd6cfeffff05 7d6e }
            // n = 6, score = 100
            //   83bd6cfeffff00       | cmp                 dword ptr [ebp - 0x194], 0
            //   7509                 | jne                 0xb
            //   c68563feffff01       | mov                 byte ptr [ebp - 0x19d], 1
            //   eb77                 | jmp                 0x79
            //   83bd6cfeffff05       | cmp                 dword ptr [ebp - 0x194], 5
            //   7d6e                 | jge                 0x70

        $sequence_13 = { e8???????? 83c418 ff442414 8b442414 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   83c418               | add                 esp, 0x18
            //   ff442414             | inc                 dword ptr [esp + 0x14]
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]

        $sequence_14 = { 56 e8???????? 59 46 3b35???????? }
            // n = 5, score = 100
            //   56                   | push                esi
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   46                   | inc                 esi
            //   3b35????????         |                     

        $sequence_15 = { 8985ecfdffff 83bdecfdffffff 0f84ae000000 8b95e4fdffff }
            // n = 4, score = 100
            //   8985ecfdffff         | mov                 dword ptr [ebp - 0x214], eax
            //   83bdecfdffffff       | cmp                 dword ptr [ebp - 0x214], -1
            //   0f84ae000000         | je                  0xb4
            //   8b95e4fdffff         | mov                 edx, dword ptr [ebp - 0x21c]

    condition:
        7 of them and filesize < 262144
}
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