Analysis

  • max time kernel
    150s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/09/2024, 08:36

General

  • Target

    f59d451dade5800e7a23909f93df9ff0_JaffaCakes118.exe

  • Size

    204KB

  • MD5

    f59d451dade5800e7a23909f93df9ff0

  • SHA1

    2467d299fc67b5e5db89a586ad3aecf72f2510d8

  • SHA256

    5bbfb232bfda142a1b91d795c5132c2c08d31ac203a22b964739067898871f76

  • SHA512

    18f86e047d1eb01e148abc390acf27a95be2f940e46069350a5634caf477bb67a44e6f236de7d31a61a3cccd5e133c758ba6262c6202e1d45324ffc4fd2cbc94

  • SSDEEP

    3072:rvgqKZBXj3pZgjxp8HRfW+Ida220gN4JsBi40BuWNVYrcLwcYieNRrhomiyTfXIL:rvvOxDpZgdORfWTmiDBuhTIaxu+7qT

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 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
  • Adds Run key to start application 2 TTPs 51 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f59d451dade5800e7a23909f93df9ff0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f59d451dade5800e7a23909f93df9ff0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3160
    • C:\Users\Admin\yiaruo.exe
      "C:\Users\Admin\yiaruo.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
      • Suspicious use of WriteProcessMemory
      PID:4192

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\yiaruo.exe

          Filesize

          204KB

          MD5

          4d2170ae2cdcd2f252e3573d2ea85671

          SHA1

          5dc9456d088fa470c42afa24f202982f4ab05a59

          SHA256

          4b59bbedc90b5e275735ee2231c3e020fd456901210946ee54c2bfbf5774d8cd

          SHA512

          5e065ad494ab5c1b7c881f3403baddf54efbc8fec2da700368626e5754905398118a5a366ad0c5cf3049e4050f0303775aac8b50898af4a76b152d0583a7f589