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
    08-12-2024 14:41

General

  • Target

    d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

  • Size

    302KB

  • MD5

    d7927c417e3d4da2934641d84a008e83

  • SHA1

    b0234c7be3321053b39b77855cfe99573240c39d

  • SHA256

    9689cb65fedbd0b1cfba22cb8dba66dd9ac2c5146c4d3a00fdb7fbc60bbe4788

  • SHA512

    208dc7b2724a8295198323d0e1eb7f076781ab965a9231a14482bf97bf5502ec2bb04448c50bfb724612516b359f1d4c18cfc7f6bb65aab4714b06080b55beca

  • SSDEEP

    6144:aYhHdanjQ7VTDhT55QrHu1tIiKj+qOMlZQxdS/2sAUT6YIBa2pyyhD8Y+p:th9OjQ7VTDf5QryhKVtZQLS/u+jIBaZ5

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 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 11 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 5 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • 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:1704
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2748
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
          PID:3852
        • C:\system32\winlogon.exe
          "C:\system32\winlogon.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3628
          • C:\system32\winlogon.exe
            "C:\system32\winlogon.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:2816
            • C:\Windows\SysWOW64\explorer.exe
              "C:\Windows\SysWOW64\explorer.exe"
              5⤵
                PID:2456

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\system32\winlogon.exe

        Filesize

        302KB

        MD5

        d7927c417e3d4da2934641d84a008e83

        SHA1

        b0234c7be3321053b39b77855cfe99573240c39d

        SHA256

        9689cb65fedbd0b1cfba22cb8dba66dd9ac2c5146c4d3a00fdb7fbc60bbe4788

        SHA512

        208dc7b2724a8295198323d0e1eb7f076781ab965a9231a14482bf97bf5502ec2bb04448c50bfb724612516b359f1d4c18cfc7f6bb65aab4714b06080b55beca

      • memory/1704-4-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/1704-3-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/1704-5-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/1704-72-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/1704-9-0x0000000000A60000-0x0000000000A61000-memory.dmp

        Filesize

        4KB

      • memory/1704-8-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/1704-7-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/2748-11-0x0000000000980000-0x0000000000981000-memory.dmp

        Filesize

        4KB

      • memory/2816-82-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/2816-81-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/2816-80-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/2816-79-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/2816-78-0x0000000013140000-0x00000000131FC000-memory.dmp

        Filesize

        752KB

      • memory/3628-77-0x0000000000400000-0x0000000000410000-memory.dmp

        Filesize

        64KB

      • memory/4896-6-0x0000000000400000-0x0000000000410000-memory.dmp

        Filesize

        64KB

      • memory/4896-0-0x0000000000400000-0x0000000000410000-memory.dmp

        Filesize

        64KB