Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2024 16:59

General

  • Target

    e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe

  • Size

    2.0MB

  • MD5

    e761ad70be62309281d1edf463e8c0e4

  • SHA1

    6003a7704f131074cb9a8162c4cfdf979ce5be8f

  • SHA256

    343aaf3307a88ac8be9ebc8a3562905d7c34e3dadc477d7557b00f06c3904e7c

  • SHA512

    068bed4b6e6b7ef8a5f9ba596b18f5f3a76949961e9994e488109fe2266ddcf831240f72f510bf98cbc38653584c8682ed272cd72819bd714dd947727e0707c7

  • SSDEEP

    49152:1rLsrRotIig7rLaKXrrf7mX8rptlyXFwtAamqRkWvazk:1rGL3LZPaXwt6ExAFzk

Malware Config

Extracted

Family

darkcomet

Botnet

JDB

C2

wonanwad.no-ip.biz:1604

Mutex

DCMIN_MUTEX-6X4A2HS

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    NMt8acKfFNq0

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

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 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3980
      • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
        3⤵
        • 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:3472
        • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
          "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2740
          • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
            "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2292
            • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
              "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4716
              • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
                "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:2620
              • C:\Users\Admin\AppData\Local\Temp\BS.exe
                "C:\Users\Admin\AppData\Local\Temp\BS.exe"
                7⤵
                • Executes dropped EXE
                PID:3064
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 232
                  8⤵
                  • Program crash
                  PID:3012
      • C:\Users\Admin\AppData\Local\Temp\BS.exe
        "C:\Users\Admin\AppData\Local\Temp\BS.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 272
          4⤵
          • Program crash
          PID:3900
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2736 -ip 2736
    1⤵
      PID:3764
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3064 -ip 3064
      1⤵
        PID:1328

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.1MB

        MD5

        1b86d2f35d809aaf46f61422db2347e5

        SHA1

        a22dd1923e062ccc254cb954ead83f4a2aeec8bb

        SHA256

        6a9ee948c23523392aa357598582eb173506ecfffe92c0524a666ca026814735

        SHA512

        f6626d2f913e8bfbf1de7827f1661374d228c7106624089d29bcba16c41ca0271c0ccc88073fc1898593dd67155d7b276a35cbec35703e4f944abff5cbaadbdc

      • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

        Filesize

        2.0MB

        MD5

        e761ad70be62309281d1edf463e8c0e4

        SHA1

        6003a7704f131074cb9a8162c4cfdf979ce5be8f

        SHA256

        343aaf3307a88ac8be9ebc8a3562905d7c34e3dadc477d7557b00f06c3904e7c

        SHA512

        068bed4b6e6b7ef8a5f9ba596b18f5f3a76949961e9994e488109fe2266ddcf831240f72f510bf98cbc38653584c8682ed272cd72819bd714dd947727e0707c7

      • memory/2620-53-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/2620-54-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/2620-45-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/3472-33-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/3472-3-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/3472-4-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/3472-8-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/3472-9-0x0000000000400000-0x00000000004B2000-memory.dmp

        Filesize

        712KB

      • memory/3472-10-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

        Filesize

        4KB

      • memory/3980-7-0x0000000000400000-0x00000000005D1000-memory.dmp

        Filesize

        1.8MB

      • memory/3980-29-0x0000000000400000-0x00000000005D1000-memory.dmp

        Filesize

        1.8MB

      • memory/3980-0-0x0000000000400000-0x00000000005D1000-memory.dmp

        Filesize

        1.8MB

      • memory/3980-2-0x0000000000400000-0x00000000005D1000-memory.dmp

        Filesize

        1.8MB

      • memory/4716-43-0x0000000000400000-0x00000000005D1000-memory.dmp

        Filesize

        1.8MB

      • memory/4716-57-0x0000000000400000-0x00000000005D1000-memory.dmp

        Filesize

        1.8MB