Analysis

  • max time kernel
    157s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/02/2024, 05:45

General

  • Target
    9f956784f072d795aab1a8332befa330.exe
  • Size 660KB
  • Sample240216-gfycmabe76
  • SHA256 14b45ff4c27d6738ec3d9e5272ea6564c8856c0a258eda9fa6ed9a549abfce12
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Slaaf

C2
  • windows030.no-ip.biz:1604

Mutex
  • DC_MUTEX-0MQV7A8

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    wDMAbJ6rbj3z

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

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 2 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\9f956784f072d795aab1a8332befa330.exe
    "C:\Users\Admin\AppData\Local\Temp\9f956784f072d795aab1a8332befa330.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:2600
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1204

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        msdcsc.exe

        • Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        • Size 660KB
        • SHA256 14b45ff4c27d6738ec3d9e5272ea6564c8856c0a258eda9fa6ed9a549abfce12
        • MD5 SHA1 SHA512 SSDEEP

        memory/1204-19-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-21-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-14-0x00000000007C0000-0x00000000007C1000-memory.dmp

        memory/1204-15-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-16-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-17-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-18-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-28-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-27-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-22-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-20-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-23-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-24-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-25-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1204-26-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/2600-13-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/2600-0-0x0000000002410000-0x0000000002411000-memory.dmp