Analysis

  • max time kernel
    141s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/02/2025, 05:30

General

  • Target

    2025-02-27_432708d541da1bf33ab666cf8551445b_snatch.exe

  • Size

    2.4MB

  • MD5

    432708d541da1bf33ab666cf8551445b

  • SHA1

    81c51ce929a2fb7f93f242647db7fd5f45f3e081

  • SHA256

    54f45ca1b511bfe2bb416d76747bc5c3c3b2be0e226644ced863c47383f405bd

  • SHA512

    cc3511568a724fd8c4451a5dc8a2df9d9da713225ec6a22a85a30fb55e1d30a4244e1982a756c9b91076ce3d3e6820e72058ee7ed4a044dc3abfb8e5d9ddfb46

  • SSDEEP

    49152:9EMoVl3zWwx0qxnkRGcQI+IxYmPznz11afSz5:9EM4l3zWwxR0

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ratker.duckdns.org:6300

Mutex

DC_MUTEX-PQZD4XN

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    densxlCpRnTq

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • 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 2 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-27_432708d541da1bf33ab666cf8551445b_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-27_432708d541da1bf33ab666cf8551445b_snatch.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.exe
      C:\Users\Admin\AppData\Local\Temp\XVlBzgbaiC.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:3288
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5060
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:232

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    658KB

    MD5

    67e76c157e56f8df1f0994309a318309

    SHA1

    26901e3d6c2814de3f494ce360c021865012660f

    SHA256

    03267700eb8b450e06cd810161c27c4e24366bc4ea911efa359a64c7bc4cd69c

    SHA512

    baa9286161ee34d1a069c9935864680ac1815d77872e0b772dece481e7a81299b551b85e9b8cad9b39327d6593b7a04279dc24c866796fff5709564419811c1d

  • memory/232-68-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/232-70-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3288-4-0x00000000006A0000-0x00000000006A1000-memory.dmp

    Filesize

    4KB

  • memory/3288-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/5060-7-0x0000000000A40000-0x0000000000A41000-memory.dmp

    Filesize

    4KB