Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2024 03:42

General

  • Target

    e48a3de9365109d242dce7d56aea8ca9_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    e48a3de9365109d242dce7d56aea8ca9

  • SHA1

    4ceb09ec07de94bb8fcca3bcc13883f67238a440

  • SHA256

    f1a52769d9973e677f52e12229735354c22432d6f61894053a3b24d0b8121b93

  • SHA512

    98ee169551954446b622060e4259ee00bec72e9447d685f81b32fae616ac11fd8572f45429035c71f99d315423cec6760a439ac77cc445ff22a380934eabb645

  • SSDEEP

    24576:saHMv6CorjqnyC8xlDg/r0vLPzVFFw5/bDBxU8YPEBniQVKet4:s1vqjdC8PDg/4v33Fo/b7WK7/4

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e48a3de9365109d242dce7d56aea8ca9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e48a3de9365109d242dce7d56aea8ca9_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3436
    • C:\Users\Admin\AppData\Local\Temp\uncrypted.exe
      "C:\Users\Admin\AppData\Local\Temp\uncrypted.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:680
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:4796
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1460
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3520
      • C:\Users\Admin\Documents\AdobeReader\AdobeReaderUpdater.exe
        "C:\Users\Admin\Documents\AdobeReader\AdobeReaderUpdater.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3596
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\aut9451.tmp

    Filesize

    756KB

    MD5

    0bf6f7e8e7cf9074177fdfd7153434b2

    SHA1

    c288137598c45341e478e2e56d2b1e8c50bbc2cb

    SHA256

    2c656c7dd943dfe91fa85f2c9c2975d737295a9f76f433f312cf2dd8e90cfc4b

    SHA512

    0abe7fa0c383c49f99239c36e7971d1774d7ee1a73cdd9c0523fbfb5932c35da0143b8698c0e41d07d1c5dad8298350bb475777f8b7366394fe40d67b09a9b9a

  • C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

    Filesize

    50B

    MD5

    b774ae3fb1da087e1f83b4f7b2060e5a

    SHA1

    97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

    SHA256

    adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

    SHA512

    f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

  • C:\Users\Admin\AppData\Local\Temp\uncrypted.exe

    Filesize

    756KB

    MD5

    dd0fadb191c79418d7fca232054ceb65

    SHA1

    6f2f9f6012e93f6a0fff1d538952f7d5e8548d3e

    SHA256

    2a0a41812289886daec154ef1950b47b60d8f99ca99dfa58946d9ecbbab4cda2

    SHA512

    fb2e05eb3250b1f227a7668c838c2b78ebb4479fcd960a2e96d292c101d57359dc62147fad9cc5d8a970b986ae248a26d4c4447f6729d1d60e9d818eb5d0f66f

  • memory/2916-20-0x0000000002180000-0x0000000002181000-memory.dmp

    Filesize

    4KB

  • memory/2916-90-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/3436-0-0x0000000000400000-0x00000000004D3000-memory.dmp

    Filesize

    844KB

  • memory/3596-92-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/4812-91-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB