Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 23:02

General

  • Target

    cf7bf3cb5ff408ae80ffab27aa4f3061_JaffaCakes118.exe

  • Size

    708KB

  • MD5

    cf7bf3cb5ff408ae80ffab27aa4f3061

  • SHA1

    53d6eac4b7364dec220dc000e474146c0ceaedcf

  • SHA256

    e61c53adac5c59926be8c56836e91bfb91d48f4335b8595b27d5bca0037d5c71

  • SHA512

    9702b7ba31328a04d714a938079a25b350a069249de7f5482b9726ea15d1d7d0814f5df830e0ae003d01b24e9642f81864aaa70e22c84e14469223aeec87060e

  • SSDEEP

    12288:+cTRwnJKE50VD68cWOrqWXKeeV7zCQZCOY2C8jo7NUL5vMQaw/uYftwq:+cTRGJHS3OrBXKeiHCQIOxjo7ypdawBb

Malware Config

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 BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cf7bf3cb5ff408ae80ffab27aa4f3061_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cf7bf3cb5ff408ae80ffab27aa4f3061_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:828
    • C:\Users\Admin\AppData\Local\Temp\cf7bf3cb5ff408ae80ffab27aa4f3061_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\cf7bf3cb5ff408ae80ffab27aa4f3061_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3988
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4220
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
            PID:2592
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 80
              5⤵
              • Program crash
              PID:60
        • C:\Windupdt\winupdate.exe
          "C:\Windupdt\winupdate.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4640
          • C:\Windupdt\winupdate.exe
            C:\Windupdt\winupdate.exe
            4⤵
            • Checks BIOS information in registry
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:4652
        • C:\Windows\SysWOW64\ping.exe
          ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\cf7bf3cb5ff408ae80ffab27aa4f3061_JaffaCakes118.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2592 -ip 2592
      1⤵
        PID:3256

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windupdt\winupdate.exe

        Filesize

        708KB

        MD5

        cf7bf3cb5ff408ae80ffab27aa4f3061

        SHA1

        53d6eac4b7364dec220dc000e474146c0ceaedcf

        SHA256

        e61c53adac5c59926be8c56836e91bfb91d48f4335b8595b27d5bca0037d5c71

        SHA512

        9702b7ba31328a04d714a938079a25b350a069249de7f5482b9726ea15d1d7d0814f5df830e0ae003d01b24e9642f81864aaa70e22c84e14469223aeec87060e

      • memory/3988-3-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/3988-2-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/3988-4-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/3988-5-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/3988-6-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/3988-7-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/3988-75-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-12-0x0000000000400000-0x00000000004B1000-memory.dmp

        Filesize

        708KB

      • memory/4220-10-0x0000000000400000-0x00000000004B1000-memory.dmp

        Filesize

        708KB

      • memory/4220-16-0x0000000000400000-0x00000000004B1000-memory.dmp

        Filesize

        708KB

      • memory/4652-87-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-91-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-85-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-82-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-86-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-84-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-88-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-89-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-90-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-83-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-92-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-93-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-94-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-95-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-96-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-97-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-98-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-99-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-100-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4652-101-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB