Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2024 23:02

General

  • Target

    ed1f8622583e025c88f49d87c6cb9ea8_JaffaCakes118.exe

  • Size

    574KB

  • MD5

    ed1f8622583e025c88f49d87c6cb9ea8

  • SHA1

    e6df1d20ccb444f9d9939c9ad68e47674682fb61

  • SHA256

    620bbcf3a8ca25233247fbb5ed293799f7dad46d594649e74eb97f5041b5d95c

  • SHA512

    31502c988b7457d0b1d408c75f40bb8de54d40e093c3c5cb724f7a1981511de8340b1230dd528a79eff37aec007c6d5c9169dfcd3b2f7dd2df1b45769a977d9a

  • SSDEEP

    12288:izpMS4Kd/wALu4WVD8RMyOyAfnXAuH8EZscTptxIewNK8VlRfqHuo9:iFMjs4ALbUDbybtEZsGtxIZK0Ts

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

93.76.25.160:1604

Mutex

DC_MUTEX-AMH04UV

Attributes
  • InstallPath

    WindowsDefencer/Update.exe

  • gencode

    tLtGfaegvvj1

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Windows Defencer

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Sets file to hidden 1 TTPs 4 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 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 48 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 6 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed1f8622583e025c88f49d87c6cb9ea8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ed1f8622583e025c88f49d87c6cb9ea8_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe
      "C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1980
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3856
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\ìàçàôàêà.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2776
      • 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
        PID:876
        • 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:4848
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3552
    • C:\Users\Admin\AppData\Local\Temp\64.exe
      "C:\Users\Admin\AppData\Local\Temp\64.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3432
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\64.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2132
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\64.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1660
      • 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:4980
        • 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:4528
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\64.exe

    Filesize

    659KB

    MD5

    7048f25bc0ba090a6032c44ed89090b5

    SHA1

    1eada430aca1d2d42b721a0d96495ab279bcddb0

    SHA256

    a9f28ea95f4e525ef3ff9c0b38a8914eb1ce98e44b91cd867154f7414ccb1989

    SHA512

    522f59a0c4ea54dba8653e68c19670c41ba6a395e9ada8c83ffd4e0b7983cb041c6f55919af756fc882336c2d4dd252e958f49f1d11cad0a8f41a3a220bbe3ce

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

    Filesize

    659KB

    MD5

    cfca83243eef473ffe11b3e04d12278a

    SHA1

    65dfe3b657d257cb6883bb29615fc4fee248658a

    SHA256

    b6127642b394438b5b1172278bf6079c938ecd1f274470b041c4ab17874f7581

    SHA512

    10ceb62560db7b9163cb770bd6d0c697c647f4c765c26b7fabd5d83d711f238578480e5054d9926f04229dddc9cce8ec690521e8a9fc39be374cd3a689042db5

  • memory/1980-27-0x00000000022C0000-0x00000000022C1000-memory.dmp

    Filesize

    4KB

  • memory/1980-30-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1980-34-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3432-28-0x0000000002400000-0x0000000002401000-memory.dmp

    Filesize

    4KB

  • memory/3432-31-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3432-35-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3432-37-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3572-29-0x0000000000F70000-0x0000000000F71000-memory.dmp

    Filesize

    4KB

  • memory/3940-0-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/3940-26-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB