Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-07-2024 15:33

General

  • Target

    68275f19569fec585c4770c97cfca047_JaffaCakes118.exe

  • Size

    384KB

  • MD5

    68275f19569fec585c4770c97cfca047

  • SHA1

    17114b0e4af688c9e3731191f0b8dac359b907c4

  • SHA256

    5f1819f32ee8b45186dc95e4e6dea6c521330d5b5f15a805ab5840e9cecca6d2

  • SHA512

    79d4e9d050f459b5780f9e2458271d767ca510e6f7d2f0d0e72d220c29419f7beab4ce2ba9093d631cfec80b377b7275a81ba0d8ed46c365e9146876c7eba001

  • SSDEEP

    6144:Ustj9IAvG6uK4a2TURddhDZ23w8QEoKHjWZLKBPvHIWMw:CHa9NZ2A81vWpaPvN

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\68275f19569fec585c4770c97cfca047_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\68275f19569fec585c4770c97cfca047_JaffaCakes118.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Users\Admin\buoviy.exe
      "C:\Users\Admin\buoviy.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\buoviy.exe

    Filesize

    384KB

    MD5

    5de97922f7aa3708528e9414d1e2cf78

    SHA1

    6b4b50309bdfa46e82070d008c69443c67aad33d

    SHA256

    1ec399b4ddc41b51b888a657291057f567162ab60ee64fe341b767e700d349c5

    SHA512

    ac6dce9e8d036aa5c3b517ed651c859a54827001296b60496a65f1a470eb448175eb59cfe306b3a87b8caf21ac51d7ff06f3ece69aa5a6967d7af0e03fd48d61