Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-06-2024 10:30

General

  • Target

    15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe

  • Size

    744KB

  • MD5

    15a998925e3e0ac2ca2c0da01634f778

  • SHA1

    cdecd718b27533905f782c58687fd65505be63b9

  • SHA256

    1e3adf9d47bc468007e2e0901b464546f8db71116da4ceaff39ff1521373e420

  • SHA512

    03bcb296f95e5dde0f7deb34f69677893291483ec3cef2c637c048b58045a60b8b9c111125e811e5a685961ad9f1c8adff85e153235552034e7849a38d15ceb7

  • SSDEEP

    12288:d8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1f/gORixjbJ:uUKoN0bUxgGa/pfBHDb+y1HgZ9l

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 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
  • 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).

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

    Filesize

    744KB

    MD5

    15a998925e3e0ac2ca2c0da01634f778

    SHA1

    cdecd718b27533905f782c58687fd65505be63b9

    SHA256

    1e3adf9d47bc468007e2e0901b464546f8db71116da4ceaff39ff1521373e420

    SHA512

    03bcb296f95e5dde0f7deb34f69677893291483ec3cef2c637c048b58045a60b8b9c111125e811e5a685961ad9f1c8adff85e153235552034e7849a38d15ceb7

  • memory/2392-0-0x0000000002140000-0x0000000002141000-memory.dmp

    Filesize

    4KB

  • memory/2392-13-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2812-14-0x0000000002080000-0x0000000002081000-memory.dmp

    Filesize

    4KB

  • memory/2812-15-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2812-21-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB