Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 11:06

General

  • Target

    73c98ffcdfaa60ff5d8cf6dabda7d0ab_JaffaCakes118.exe

  • Size

    678KB

  • MD5

    73c98ffcdfaa60ff5d8cf6dabda7d0ab

  • SHA1

    046910bb88a9360ce24269768c9a46143697c103

  • SHA256

    f9405a6c0b639fe55234089fa4266e53d85dedcb4111b692d832ae2f76643f0d

  • SHA512

    826bafe8b7d365c91c7f9ddf56bdc432ec4035bb90602b71e0248ddb2fb1ada773ddefbf7c1bd2e6fe22feeac0e15c9fb6e6aa3d153bdf05494a1c8230644a6a

  • SSDEEP

    12288:7GS0C81G0DCneK63t+ZDCrv9MVX0XNsrgpqfdhexnV1Ua9+8GPh4e+X+ETfA:7D0DSeK6GIliIsrgcOV1Ua5GZLMTfA

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

masss.no-ip.biz:1604

Mutex

DC_MUTEX-KPFPAPT

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    f56klvnL1Z1j

  • install

    true

  • offline_keylogger

    true

  • password

    12345

  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 2 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 4 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 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\73c98ffcdfaa60ff5d8cf6dabda7d0ab_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\73c98ffcdfaa60ff5d8cf6dabda7d0ab_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Users\Admin\AppData\Local\Temp\73c98ffcdfaa60ff5d8cf6dabda7d0ab_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\73c98ffcdfaa60ff5d8cf6dabda7d0ab_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:2804
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\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:3844
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

    Filesize

    678KB

    MD5

    73c98ffcdfaa60ff5d8cf6dabda7d0ab

    SHA1

    046910bb88a9360ce24269768c9a46143697c103

    SHA256

    f9405a6c0b639fe55234089fa4266e53d85dedcb4111b692d832ae2f76643f0d

    SHA512

    826bafe8b7d365c91c7f9ddf56bdc432ec4035bb90602b71e0248ddb2fb1ada773ddefbf7c1bd2e6fe22feeac0e15c9fb6e6aa3d153bdf05494a1c8230644a6a

  • memory/1756-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1756-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2804-3-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2804-4-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2804-5-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2804-8-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2804-9-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2804-21-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3844-30-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4540-36-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-42-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-33-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-34-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-31-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-35-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-37-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-38-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-39-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-40-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-41-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-32-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-43-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-44-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-45-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-46-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-47-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-48-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-49-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-50-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4540-51-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB