Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/07/2024, 04:34

General

  • Target
    403810510509640b54651a96c31e6f92_JaffaCakes118.exe
  • Size 522KB
  • Sample240713-e662cawcln
  • SHA256 b3552459fb71db9b71cf769f67d8794fad7db5568b9c4cfa189f532e71a83f39
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • m20sh9.no-ip.org:1515

Mutex
  • DC_MUTEX-5C2P2UP

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    98X29pBtiSv1

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 6 IoCs
  • 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\403810510509640b54651a96c31e6f92_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\403810510509640b54651a96c31e6f92_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:3648
    • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4796

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        msdcsc.exe

        • Path C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
        • Size 522KB
        • SHA256 b3552459fb71db9b71cf769f67d8794fad7db5568b9c4cfa189f532e71a83f39
        • MD5 SHA1 SHA512 SSDEEP

        memory/3648-5-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-38-0x0000000002390000-0x0000000002391000-memory.dmp

        memory/3648-1-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-11-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-34-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-33-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-32-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-31-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-30-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-29-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-28-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-27-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-26-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-25-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-24-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-23-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-22-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-21-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-20-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-19-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-17-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-18-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-16-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-15-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-14-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-10-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-9-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-7-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-6-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-2-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-8-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-4-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-0-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/3648-13-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-35-0x0000000002490000-0x0000000002493000-memory.dmp

        memory/3648-3-0x0000000002490000-0x0000000002491000-memory.dmp

        memory/3648-42-0x00000000024B0000-0x00000000024B1000-memory.dmp

        memory/3648-41-0x00000000024C0000-0x00000000024C1000-memory.dmp

        memory/3648-40-0x00000000024D0000-0x00000000024D1000-memory.dmp

        memory/3648-39-0x00000000023A0000-0x00000000023A1000-memory.dmp

        memory/3648-37-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-36-0x0000000002480000-0x0000000002481000-memory.dmp

        memory/3648-46-0x0000000002520000-0x0000000002521000-memory.dmp

        memory/3648-45-0x0000000002530000-0x0000000002531000-memory.dmp

        memory/3648-12-0x00000000024A0000-0x00000000024A1000-memory.dmp

        memory/3648-59-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-67-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-69-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-61-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-62-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-63-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-57-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-60-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-65-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-64-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-68-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-66-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-70-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-71-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-72-0x0000000000400000-0x000000000052A000-memory.dmp

        memory/4796-73-0x0000000000400000-0x000000000052A000-memory.dmp