Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/10/2024, 18:39

General

  • Target

    2394cec73e98c0c91e94d9c53c073f3d_JaffaCakes118.exe

  • Size

    821KB

  • MD5

    2394cec73e98c0c91e94d9c53c073f3d

  • SHA1

    4b6071a7b83227fd3d75a0ea2ac5bbf296c12bc7

  • SHA256

    240f55aa91e6c06161780c1f3ece5eabab4e9a916ee155062ced44c8eeaa5d37

  • SHA512

    2490e1cafb21bdb9c045c7488ba372dc9a75ecad410ecbd4f70bb948aa6076846a8c3593a3f5f8f76ac68f1c21fac266a2d5d103af619cee22d6cf9c0d651857

  • SSDEEP

    12288:6yawtaU6GH+V6Uk9VoPGPX7/2tQPY4HdaoHbrEoZ1eVWBFwe7yHXvy5dZ:AUPR9VSArOH4b7okeVWDt7aK5L

Malware Config

Signatures

  • Darkcomet

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

  • 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 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • 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
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2394cec73e98c0c91e94d9c53c073f3d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2394cec73e98c0c91e94d9c53c073f3d_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\2394cec73e98c0c91e94d9c53c073f3d_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\2394cec73e98c0c91e94d9c53c073f3d_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
      • Drops file in Windows directory
      • 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:4836
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Adds Run key to start application
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4408
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2176
      • C:\Windows\Windupdt\winupdate.exe
        "C:\Windows\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2464
        • C:\Windows\Windupdt\winupdate.exe
          C:\Windows\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 use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4744
          • C:\Windows\SysWOW64\notepad.exe
            C:\Windows\SysWOW64\notepad.exe
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Windupdt\winupdate.exe

    Filesize

    821KB

    MD5

    2394cec73e98c0c91e94d9c53c073f3d

    SHA1

    4b6071a7b83227fd3d75a0ea2ac5bbf296c12bc7

    SHA256

    240f55aa91e6c06161780c1f3ece5eabab4e9a916ee155062ced44c8eeaa5d37

    SHA512

    2490e1cafb21bdb9c045c7488ba372dc9a75ecad410ecbd4f70bb948aa6076846a8c3593a3f5f8f76ac68f1c21fac266a2d5d103af619cee22d6cf9c0d651857

  • memory/2176-11-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2176-16-0x00000000004A0000-0x00000000008D3000-memory.dmp

    Filesize

    4.2MB

  • memory/2176-13-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2788-81-0x0000000000C30000-0x0000000000C31000-memory.dmp

    Filesize

    4KB

  • memory/4408-8-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

    Filesize

    4KB

  • memory/4744-82-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4744-80-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4744-84-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4744-83-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4836-5-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4836-6-0x0000000000780000-0x0000000000781000-memory.dmp

    Filesize

    4KB

  • memory/4836-4-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4836-77-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4836-3-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB

  • memory/4836-2-0x0000000013140000-0x000000001320F000-memory.dmp

    Filesize

    828KB