Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/07/2024, 02:20

General

  • Target
    76b27fb0cf68b6bd9e32547856fca887_JaffaCakes118.exe
  • Size 696KB
  • Sample240727-csjmsatfmf
  • SHA256 5b2affa188704510f48eaed61522632ff7d95fd462b1e508ee02538e9d6a3a17
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • HF

C2
  • 192.168.0.2:100

  • surfingforus.zapto.org:100

Mutex
  • DC_MUTEX-B4DJA70

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    ShXk49WH4tyF

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Extracted

Family
  • latentbot

C2
  • surfingforus.zapto.org

Signatures

  • Darkcomet

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

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • 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 1 IoCs
  • Suspicious use of SetThreadContext 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 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76b27fb0cf68b6bd9e32547856fca887_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\76b27fb0cf68b6bd9e32547856fca887_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:212
    • C:\Users\Admin\AppData\Local\Temp\76b27fb0cf68b6bd9e32547856fca887_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\76b27fb0cf68b6bd9e32547856fca887_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4336
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5116
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4884
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4464

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        msdcsc.exe

        • Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        • Size 696KB
        • SHA256 5b2affa188704510f48eaed61522632ff7d95fd462b1e508ee02538e9d6a3a17
        • MD5 SHA1 SHA512 SSDEEP

        memory/4336-2-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4336-4-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4336-3-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4336-5-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4336-30-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4464-27-0x0000000000A20000-0x0000000000A21000-memory.dmp

        memory/4884-29-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-28-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-26-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-25-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-32-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-33-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-34-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-36-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-38-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-40-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-42-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/4884-44-0x0000000000400000-0x00000000004B2000-memory.dmp