Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 21:11

General

  • Target

    8bcc4d1cbecad4721136b590d03a0b6e_JaffaCakes118.exe

  • Size

    624KB

  • MD5

    8bcc4d1cbecad4721136b590d03a0b6e

  • SHA1

    705dfb38710b8cd90957b485cb8477259057e981

  • SHA256

    12eea2303be31b629daf8cb7c5de0fb0336bbaa6153133a0acd5244f7af2dcf7

  • SHA512

    fb9f256da109ab4d06089b1794e09d349374ec1f606b5cc435caf7a7d365a3012b154053d273d3a6e3d81562bccc5c626c435be7073770f13f283d13343e4769

  • SSDEEP

    12288:5UdZT1ZPtL5S05tmnqtfPp7WQfds84tsIDHPYg000wch63NM8I:mdZTX7S05tmqrShHPYxbTw3NM8I

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 8 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\8bcc4d1cbecad4721136b590d03a0b6e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8bcc4d1cbecad4721136b590d03a0b6e_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:3976
    • C:\Users\Admin\AppData\Local\Temp\n9080\s9080.exe
      "C:\Users\Admin\AppData\Local\Temp\n9080\s9080.exe" 60b98b8d7dbdf5e27e919c09tqJ6ysAHVPtU3C4qfnxWSMAF2oIylbY0j1QpvQ4AUNa2E5BSKcLNa1GdGUnneFnua56obabaVr5YFAiE5RXDKcclPCFua30GLFGfYp03MvovQtRiS1AmngQq9gPnUhsv/IWUK8WPhbpW1ycwzgCZhKinpnHLXZhgEZAlXqp0 /v "C:\Users\Admin\AppData\Local\Temp\8bcc4d1cbecad4721136b590d03a0b6e_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:1628
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 1892
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:2952

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n9080\s9080.exe

          Filesize

          373KB

          MD5

          5d3330c2891766f2987b49dd4bdaadfd

          SHA1

          31dbd97c319944a692c47995053c098431bcfdaf

          SHA256

          825418c6c8d0c97c4061c720537223e5d4ea5a49ab8b74910443165a1cef9097

          SHA512

          0880d0381802ec5d3b0a58df7af8232ad96cd5d11475ffd82d95b9a0ac4b1e80585cea78f7f12808d9251253fce07f7ec31f66d97ab46057f4b26205ad4f6414

        • memory/1628-12-0x00007FFD83445000-0x00007FFD83446000-memory.dmp

          Filesize

          4KB

        • memory/1628-13-0x00007FFD83190000-0x00007FFD83B31000-memory.dmp

          Filesize

          9.6MB

        • memory/1628-29-0x000000001B500000-0x000000001B510000-memory.dmp

          Filesize

          64KB

        • memory/1628-32-0x000000001C050000-0x000000001C51E000-memory.dmp

          Filesize

          4.8MB

        • memory/1628-33-0x000000001C5C0000-0x000000001C65C000-memory.dmp

          Filesize

          624KB

        • memory/1628-34-0x00007FFD83190000-0x00007FFD83B31000-memory.dmp

          Filesize

          9.6MB

        • memory/1628-41-0x00007FFD83190000-0x00007FFD83B31000-memory.dmp

          Filesize

          9.6MB