Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-05-2024 07:34

General

  • Target

    1fe626bf863003dcbc182ff06555eda8_JaffaCakes118.exe

  • Size

    658KB

  • MD5

    1fe626bf863003dcbc182ff06555eda8

  • SHA1

    32eae2194d7d43e1a89b8cb9dd64645ce1fd49ff

  • SHA256

    0c665dd5d03c805679f78902dbc226d065a46531767a615b17fd97f6344f9cf4

  • SHA512

    43fab0b31a81a338cc9fef23e32ae73a65d83c61356fcb89f4068fb03aa87c4c9bd3211e1b29a4f2fdbb7c1c7a49090f29213fb7165586b05e8616e7ec2d6056

  • SSDEEP

    12288:C9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyFj:uiBIGkbxqEcjsWiDxguehC2Sw

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

vladshara.ddns.net:1604

Mutex

DC_MUTEX-K5TFQGG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    SE4BgDmqbg2y

  • install

    true

  • offline_keylogger

    true

  • 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
  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fe626bf863003dcbc182ff06555eda8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1fe626bf863003dcbc182ff06555eda8_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1fe626bf863003dcbc182ff06555eda8_JaffaCakes118.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\1fe626bf863003dcbc182ff06555eda8_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2540
    • C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3004
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:2600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      658KB

      MD5

      1fe626bf863003dcbc182ff06555eda8

      SHA1

      32eae2194d7d43e1a89b8cb9dd64645ce1fd49ff

      SHA256

      0c665dd5d03c805679f78902dbc226d065a46531767a615b17fd97f6344f9cf4

      SHA512

      43fab0b31a81a338cc9fef23e32ae73a65d83c61356fcb89f4068fb03aa87c4c9bd3211e1b29a4f2fdbb7c1c7a49090f29213fb7165586b05e8616e7ec2d6056

    • memory/2600-13-0x00000000000C0000-0x00000000000C1000-memory.dmp

      Filesize

      4KB

    • memory/2600-51-0x0000000000200000-0x0000000000201000-memory.dmp

      Filesize

      4KB

    • memory/2936-0-0x0000000000270000-0x0000000000271000-memory.dmp

      Filesize

      4KB

    • memory/2936-52-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-56-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-60-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-55-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-53-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-57-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-58-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-59-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-54-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-61-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-62-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-63-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-64-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-65-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

    • memory/3004-66-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB