Analysis

  • max time kernel
    128s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-04-2024 23:27

General

  • Target

    efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe

  • Size

    648KB

  • MD5

    efc29049fa5d14ed1db26fc6fbc7174a

  • SHA1

    2bba18e0c933936dd9290c6dde35c5fc1b7bd699

  • SHA256

    5d12db2475846f968b67d2dc287bd9d0fbc8f47f69f03911ec16c2ed23eb9324

  • SHA512

    c9df29c2b918d3f4cebef4eba1ba2f8dc1cdf8a464bf8eb4e876852c385f412eccd80029a54414c678bb9a66828edfa0e74c06c445e5a29afe8f48b0ed049de8

  • SSDEEP

    12288:06A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfhf:JAmBpVKHu0Mu9Xo20VGLVP5f

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windupdt\winupdatec.exe
      "C:\Windupdt\winupdatec.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4320
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3724
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 5
        3⤵
        • Runs ping.exe
        PID:4832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windupdt\winupdatec.exe

    Filesize

    648KB

    MD5

    efc29049fa5d14ed1db26fc6fbc7174a

    SHA1

    2bba18e0c933936dd9290c6dde35c5fc1b7bd699

    SHA256

    5d12db2475846f968b67d2dc287bd9d0fbc8f47f69f03911ec16c2ed23eb9324

    SHA512

    c9df29c2b918d3f4cebef4eba1ba2f8dc1cdf8a464bf8eb4e876852c385f412eccd80029a54414c678bb9a66828edfa0e74c06c445e5a29afe8f48b0ed049de8

  • memory/2744-35-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2744-0-0x00000000006E0000-0x00000000006E1000-memory.dmp

    Filesize

    4KB

  • memory/4320-41-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-43-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-38-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-39-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-40-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-36-0x00000000006C0000-0x00000000006C1000-memory.dmp

    Filesize

    4KB

  • memory/4320-42-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-37-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-44-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-45-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-46-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-47-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-48-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-49-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/4320-50-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB