Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-05-2024 22:42

General

  • Target

    82338d7b0cbb6d7f9ce053f260ae7e8d_JaffaCakes118.exe

  • Size

    642KB

  • MD5

    82338d7b0cbb6d7f9ce053f260ae7e8d

  • SHA1

    20ba46c88260d9ec60f6a311db1411af140427b9

  • SHA256

    148a0c7a95c8c809c153e979db8f936098d200a39ac50073d9929727df85b09b

  • SHA512

    4cdbe62c1f40a2be13cd74c46cf23931ad63802cff6e0c60699c0f1fa90c196f90bdb8d9e58023aca366cbef2f1d60dafc6b6bca59721d482a086d39df75b25b

  • SSDEEP

    12288:WJpv1BME1D8f6D/N3dfG/RtjSBYJmuYXBDQSIWowB6X8u:Gpv1BMvgNf4RMYYuY9QSIWxB6X8u

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82338d7b0cbb6d7f9ce053f260ae7e8d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\82338d7b0cbb6d7f9ce053f260ae7e8d_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3892
    • C:\Users\Admin\AppData\Local\Temp\n9658\s9658.exe
      "C:\Users\Admin\AppData\Local\Temp\n9658\s9658.exe" 5b5f275d156dfe934de61690p4y+OBv+XTyg0ImCRYz0e7do35oiPEWzS55YmmxLYNUKfE/7eK0JhQiQ+qVV18vG9OvYHFjn+UZxwnXFvv1kw1I21+VR6LRGWT7ZMiEZ2rg99o9hy4nAiz78cFpNW8brEEupAe0uOPZ4UTp9XuMhZem1yyntuNkFz208nusP /v "C:\Users\Admin\AppData\Local\Temp\82338d7b0cbb6d7f9ce053f260ae7e8d_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:3956
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 1864
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:1188
  • 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=1312 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4260

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\n9658\s9658.exe

      Filesize

      373KB

      MD5

      5d3330c2891766f2987b49dd4bdaadfd

      SHA1

      31dbd97c319944a692c47995053c098431bcfdaf

      SHA256

      825418c6c8d0c97c4061c720537223e5d4ea5a49ab8b74910443165a1cef9097

      SHA512

      0880d0381802ec5d3b0a58df7af8232ad96cd5d11475ffd82d95b9a0ac4b1e80585cea78f7f12808d9251253fce07f7ec31f66d97ab46057f4b26205ad4f6414

    • memory/3956-12-0x00007FFE5FFA5000-0x00007FFE5FFA6000-memory.dmp

      Filesize

      4KB

    • memory/3956-13-0x00007FFE5FCF0000-0x00007FFE60691000-memory.dmp

      Filesize

      9.6MB

    • memory/3956-14-0x00007FFE5FCF0000-0x00007FFE60691000-memory.dmp

      Filesize

      9.6MB

    • memory/3956-27-0x0000000001300000-0x0000000001310000-memory.dmp

      Filesize

      64KB

    • memory/3956-30-0x000000001C8D0000-0x000000001CD9E000-memory.dmp

      Filesize

      4.8MB

    • memory/3956-31-0x000000001C300000-0x000000001C39C000-memory.dmp

      Filesize

      624KB

    • memory/3956-32-0x00007FFE5FCF0000-0x00007FFE60691000-memory.dmp

      Filesize

      9.6MB

    • memory/3956-39-0x00007FFE5FCF0000-0x00007FFE60691000-memory.dmp

      Filesize

      9.6MB