SYMBOLCOMMON_NAMEaka. SYNONYMS
win.darkcomet (Back to overview)

DarkComet

aka: Breut, Fynloski, klovbot

Actor(s): APT33, Lazarus Group, Operation C-Major

URLhaus        

DarkComet is one of the most famous RATs, developed by Jean-Pierre Lesueur in 2008. After being used in the Syrian civil war in 2011, Lesuer decided to stop developing the trojan. Indeed, DarkComet is able to enable control over a compromised system through use of a simple graphic user interface. Experts think that this user friendliness is the key of its mass success.

References
2020-08TG SoftTG Soft
@online{soft:202008:tg:88b671c, author = {TG Soft}, title = {{TG Soft Cyber - Threat Report}}, date = {2020-08}, organization = {TG Soft}, url = {https://www.tgsoft.it/files/report/download.asp?id=7481257469}, language = {Italian}, urldate = {2020-09-15} } TG Soft Cyber - Threat Report
DarkComet Darktrack RAT Emotet ISFB
2020-01-26Brown Farinholt, Mohammad Rezaeirad, Damon McCoy, Kirill Levchenko
@techreport{farinholt:20200126:dark:9c2f434, author = {Brown Farinholt and Mohammad Rezaeirad and Damon McCoy and Kirill Levchenko}, title = {{Dark Matter: Uncovering the DarkComet RAT Ecosystem}}, date = {2020-01-26}, institution = {}, url = {https://www.sysnet.ucsd.edu/sysnet/miscpapers/darkmatter-www20.pdf}, language = {English}, urldate = {2020-03-07} } Dark Matter: Uncovering the DarkComet RAT Ecosystem
DarkComet
2020SecureworksSecureWorks
@online{secureworks:2020:aluminum:af22ffd, author = {SecureWorks}, title = {{ALUMINUM SARATOGA}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/aluminum-saratoga}, language = {English}, urldate = {2020-05-23} } ALUMINUM SARATOGA
BlackShades DarkComet Xtreme RAT Poison Ivy Quasar RAT Molerats
2020SecureworksSecureWorks
@online{secureworks:2020:copper:e356116, author = {SecureWorks}, title = {{COPPER FIELDSTONE}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/copper-fieldstone}, language = {English}, urldate = {2020-05-23} } COPPER FIELDSTONE
Crimson RAT DarkComet Luminosity RAT NjRAT Operation C-Major
2019-03-27SymantecSecurity Response Attack Investigation Team
@online{team:20190327:elfin:836cc39, author = {Security Response Attack Investigation Team}, title = {{Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.}}, date = {2019-03-27}, organization = {Symantec}, url = {https://www.symantec.com/blogs/threat-intelligence/elfin-apt33-espionage}, language = {English}, urldate = {2020-01-06} } Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.
DarkComet Nanocore RAT pupy Quasar RAT Remcos TURNEDUP APT33
2019-03-27SymantecCritical Attack Discovery and Intelligence Team
@online{team:20190327:elfin:d90a330, author = {Critical Attack Discovery and Intelligence Team}, title = {{Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.}}, date = {2019-03-27}, organization = {Symantec}, url = {https://symantec-blogs.broadcom.com/blogs/threat-intelligence/elfin-apt33-espionage}, language = {English}, urldate = {2020-04-21} } Elfin: Relentless Espionage Group Targets Multiple Organizations in Saudi Arabia and U.S.
DarkComet MimiKatz Nanocore RAT NetWire RC pupy Quasar RAT Remcos StoneDrill TURNEDUP APT33
2018FireEyeFireEye
@online{fireeye:2018:apt38:20161b7, author = {FireEye}, title = {{APT38}}, date = {2018}, organization = {FireEye}, url = {https://content.fireeye.com/apt/rpt-apt38}, language = {English}, urldate = {2020-01-13} } APT38
Bitsran BLINDTOAD BOOTWRECK Contopee DarkComet DYEPACK HOTWAX NESTEGG PowerRatankba REDSHAWL WORMHOLE Lazarus Group
2016-06-03FireEyeYin Hong Chang, Sudeep Singh
@online{chang:20160603:sends:176f9ab, author = {Yin Hong Chang and Sudeep Singh}, title = {{APT Group Sends Spear Phishing Emails to Indian Government Officials}}, date = {2016-06-03}, organization = {FireEye}, url = {https://www.fireeye.com/blog/threat-research/2016/06/apt_group_sends_spea.html}, language = {English}, urldate = {2019-12-20} } APT Group Sends Spear Phishing Emails to Indian Government Officials
BreachRAT DarkComet Operation C-Major
2012-10-05MalwarebytesAdam Kujawa
@online{kujawa:20121005:dark:192d4aa, author = {Adam Kujawa}, title = {{Dark Comet 2: Electric Boogaloo}}, date = {2012-10-05}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/threat-analysis/2012/10/dark-comet-2-electric-boogaloo/}, language = {English}, urldate = {2019-12-20} } Dark Comet 2: Electric Boogaloo
DarkComet
2012-06-21Contagio DumpMila Parkour
@online{parkour:20120621:rat:2186087, author = {Mila Parkour}, title = {{RAT samples from Syrian Targeted attacks - Blackshades RAT, XTreme RAT, Dark Comet RAT used by Syrian Electronic Army}}, date = {2012-06-21}, organization = {Contagio Dump}, url = {http://contagiodump.blogspot.com/2012/06/rat-samples-from-syrian-targeted.html}, language = {English}, urldate = {2019-12-20} } RAT samples from Syrian Targeted attacks - Blackshades RAT, XTreme RAT, Dark Comet RAT used by Syrian Electronic Army
BlackShades DarkComet Terminator RAT
2012-06-09MalwarebytesAdam Kujawa
@online{kujawa:20120609:you:c8d15e0, author = {Adam Kujawa}, title = {{You dirty RAT! Part 1: DarkComet}}, date = {2012-06-09}, organization = {Malwarebytes}, url = {https://blog.malwarebytes.com/threat-analysis/2012/06/you-dirty-rat-part-1-darkcomet/}, language = {English}, urldate = {2019-12-20} } You dirty RAT! Part 1: DarkComet
DarkComet
Yara Rules
[TLP:WHITE] win_darkcomet_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_darkcomet_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.darkcomet"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 648920 8b45ec c6404801 33d2 55 68???????? 64ff32 }
            // n = 7, score = 200
            //   648920               | mov                 dword ptr fs:[eax], esp
            //   8b45ec               | mov                 eax, dword ptr [ebp - 0x14]
            //   c6404801             | mov                 byte ptr [eax + 0x48], 1
            //   33d2                 | xor                 edx, edx
            //   55                   | push                ebp
            //   68????????           |                     
            //   64ff32               | push                dword ptr fs:[edx]

        $sequence_1 = { 837f4800 0f858c030000 6a00 6a01 6a02 e8???????? 8945fc }
            // n = 7, score = 200
            //   837f4800             | cmp                 dword ptr [edi + 0x48], 0
            //   0f858c030000         | jne                 0x392
            //   6a00                 | push                0
            //   6a01                 | push                1
            //   6a02                 | push                2
            //   e8????????           |                     
            //   8945fc               | mov                 dword ptr [ebp - 4], eax

        $sequence_2 = { 8d45ec ba???????? e8???????? 837de800 750d 8d45e8 ba???????? }
            // n = 7, score = 200
            //   8d45ec               | lea                 eax, [ebp - 0x14]
            //   ba????????           |                     
            //   e8????????           |                     
            //   837de800             | cmp                 dword ptr [ebp - 0x18], 0
            //   750d                 | jne                 0xf
            //   8d45e8               | lea                 eax, [ebp - 0x18]
            //   ba????????           |                     

        $sequence_3 = { 888543feffff 8b55f4 b8???????? e8???????? 8bc8 8d45f4 ba01000000 }
            // n = 7, score = 200
            //   888543feffff         | mov                 byte ptr [ebp - 0x1bd], al
            //   8b55f4               | mov                 edx, dword ptr [ebp - 0xc]
            //   b8????????           |                     
            //   e8????????           |                     
            //   8bc8                 | mov                 ecx, eax
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   ba01000000           | mov                 edx, 1

        $sequence_4 = { ff30 8d8dc4feffff 8bd6 8b45e8 8b38 ff570c }
            // n = 6, score = 200
            //   ff30                 | push                dword ptr [eax]
            //   8d8dc4feffff         | lea                 ecx, [ebp - 0x13c]
            //   8bd6                 | mov                 edx, esi
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   8b38                 | mov                 edi, dword ptr [eax]
            //   ff570c               | call                dword ptr [edi + 0xc]

        $sequence_5 = { 33c0 55 68???????? 64ff30 648920 8b4644 85c0 }
            // n = 7, score = 200
            //   33c0                 | xor                 eax, eax
            //   55                   | push                ebp
            //   68????????           |                     
            //   64ff30               | push                dword ptr fs:[eax]
            //   648920               | mov                 dword ptr fs:[eax], esp
            //   8b4644               | mov                 eax, dword ptr [esi + 0x44]
            //   85c0                 | test                eax, eax

        $sequence_6 = { 8b45f8 ba???????? e8???????? 7509 b001 e8???????? eb07 }
            // n = 7, score = 200
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   ba????????           |                     
            //   e8????????           |                     
            //   7509                 | jne                 0xb
            //   b001                 | mov                 al, 1
            //   e8????????           |                     
            //   eb07                 | jmp                 9

        $sequence_7 = { 6a00 56 8d4340 50 8d45f0 50 e8???????? }
            // n = 7, score = 200
            //   6a00                 | push                0
            //   56                   | push                esi
            //   8d4340               | lea                 eax, [ebx + 0x40]
            //   50                   | push                eax
            //   8d45f0               | lea                 eax, [ebp - 0x10]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_8 = { 8d45f8 b90d000000 ba01000000 e8???????? 8d45f4 8b55f8 e8???????? }
            // n = 7, score = 200
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   b90d000000           | mov                 ecx, 0xd
            //   ba01000000           | mov                 edx, 1
            //   e8????????           |                     
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   8b55f8               | mov                 edx, dword ptr [ebp - 8]
            //   e8????????           |                     

        $sequence_9 = { ba???????? e8???????? 8b9594f9ffff 33c0 e8???????? 68???????? 8d8590f9ffff }
            // n = 7, score = 200
            //   ba????????           |                     
            //   e8????????           |                     
            //   8b9594f9ffff         | mov                 edx, dword ptr [ebp - 0x66c]
            //   33c0                 | xor                 eax, eax
            //   e8????????           |                     
            //   68????????           |                     
            //   8d8590f9ffff         | lea                 eax, [ebp - 0x670]

    condition:
        7 of them and filesize < 1499136
}
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