Analysis

  • max time kernel
    156s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 07:25

General

  • Target

    fc3c1f2a8c9f207ef70331cf74f44c1f_JaffaCakes118.exe

  • Size

    748KB

  • MD5

    fc3c1f2a8c9f207ef70331cf74f44c1f

  • SHA1

    f229051de637644ac71fb954836c63d57262e53d

  • SHA256

    8ddf1a52cec3cb0b6973150d85d1672d5c443e10fa395edb9258fd0fa6bd9838

  • SHA512

    b29c96d126fddd770e07340beb18fe1f4ee1c907a6d39cb3d0e945564ca5f3011f6a2defc1912175cdf20eb0a57f286a9240f3af0107f1617d37c679190f4f4c

  • SSDEEP

    12288:+WQr2RQNI/MbOG3JNP/6hHXfRDHR5YiOAaGa0+eckUz+iFyL:+mWIUbOG37Q3fRgNGa0+IW5Fi

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 3 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).

  • Checks processor information in registry 2 TTPs 12 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc3c1f2a8c9f207ef70331cf74f44c1f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc3c1f2a8c9f207ef70331cf74f44c1f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3220
    • C:\Users\Admin\AppData\Local\Temp\fc3c1f2a8c9f207ef70331cf74f44c1f_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\fc3c1f2a8c9f207ef70331cf74f44c1f_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5036
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
          PID:1192
        • C:\Windupdt\winupdate.exe
          "C:\Windupdt\winupdate.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:488
          • C:\Windupdt\winupdate.exe
            C:\Windupdt\winupdate.exe
            4⤵
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2852
            • C:\Windows\SysWOW64\explorer.exe
              "C:\Windows\SysWOW64\explorer.exe"
              5⤵
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:60
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                6⤵
                • Checks BIOS information in registry
                • Checks processor information in registry
                • Enumerates system info in registry
                • Suspicious use of AdjustPrivilegeToken
                PID:4220
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:2908

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Windupdt\winupdate.exe

        Filesize

        748KB

        MD5

        fc3c1f2a8c9f207ef70331cf74f44c1f

        SHA1

        f229051de637644ac71fb954836c63d57262e53d

        SHA256

        8ddf1a52cec3cb0b6973150d85d1672d5c443e10fa395edb9258fd0fa6bd9838

        SHA512

        b29c96d126fddd770e07340beb18fe1f4ee1c907a6d39cb3d0e945564ca5f3011f6a2defc1912175cdf20eb0a57f286a9240f3af0107f1617d37c679190f4f4c

      • memory/60-43-0x0000000000400000-0x00000000004C2000-memory.dmp

        Filesize

        776KB

      • memory/60-36-0x0000000000400000-0x00000000004C2000-memory.dmp

        Filesize

        776KB

      • memory/60-32-0x0000000000400000-0x00000000004C2000-memory.dmp

        Filesize

        776KB

      • memory/2852-34-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/2852-29-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/2852-31-0x0000000002270000-0x0000000002271000-memory.dmp

        Filesize

        4KB

      • memory/2852-30-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/2852-28-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-44-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-46-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-50-0x00000000013F0000-0x00000000013F1000-memory.dmp

        Filesize

        4KB

      • memory/4220-49-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-48-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-47-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/4220-45-0x00000000013F0000-0x00000000013F1000-memory.dmp

        Filesize

        4KB

      • memory/4220-42-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-7-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-3-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-19-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-4-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-5-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-2-0x0000000000400000-0x00000000004B0000-memory.dmp

        Filesize

        704KB

      • memory/5036-6-0x00000000022A0000-0x00000000022A1000-memory.dmp

        Filesize

        4KB