Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-10-2024 11:59

General

  • Target

    4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.exe

  • Size

    778KB

  • MD5

    4cbb202d7c3ab05996c4adf4b5699d94

  • SHA1

    c3e7e9a20e7d2c5cacd2c70dd98f36e85e4fb7be

  • SHA256

    9297c4ff4b04787c2561f6c32e09c5aa98b6930c8c2cc9bc7332ac4aa3950b28

  • SHA512

    3dd690d570f0d05c5f33c295bcf7d35847402d0304299bba043d2614f8e94caeb346fc55ed46da6444048997528b7191bffae6b6c5ea19b1d5038e3c7b11cd58

  • SSDEEP

    12288:MshgmzsbGEI8EAGZ/fzpPAxhbpdhfwqzEwoeC1u+2YyrJ49tUDLHa1WnfZZ1ooUf:qm8idAxNN1DoDkXr+0aYZ7nA44oS53

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

craigkc.no-ip.biz:1604

Mutex

DC_MUTEX-GCQ0EQH

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    tjNQY0ZuLDn8

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 9 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.eXe
      "C:\Users\Admin\AppData\Local\Temp\4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.eXe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.eXe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2928
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\4cbb202d7c3ab05996c4adf4b5699d94_JaffaCakes118.eXe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2744
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2800
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2752
      • C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Roaming\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:2840
        • C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.eXe
          "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.eXe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2796
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe

    Filesize

    778KB

    MD5

    4cbb202d7c3ab05996c4adf4b5699d94

    SHA1

    c3e7e9a20e7d2c5cacd2c70dd98f36e85e4fb7be

    SHA256

    9297c4ff4b04787c2561f6c32e09c5aa98b6930c8c2cc9bc7332ac4aa3950b28

    SHA512

    3dd690d570f0d05c5f33c295bcf7d35847402d0304299bba043d2614f8e94caeb346fc55ed46da6444048997528b7191bffae6b6c5ea19b1d5038e3c7b11cd58

  • memory/2796-53-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2796-52-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-7-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-16-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-11-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-9-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-8-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-2-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-6-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3004-10-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-17-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-18-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-15-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-14-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-4-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3004-97-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3024-54-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB