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Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2024, 18:29

General

  • Target

    872c7ab24152ef4163141ed7ca271ebc_JaffaCakes118.exe

  • Size

    232KB

  • MD5

    872c7ab24152ef4163141ed7ca271ebc

  • SHA1

    d9d97ff5fcee621afcc21a5c69c9b1e24e27fdef

  • SHA256

    1c2482fa25f418b7d1c0efed21f0239e75ff6ccf78aa00847355c5a9f3acca1a

  • SHA512

    5409ff488d22ab5866ec972510f2e23c691507ae61d548eb5e999152dab83255812f9ed6ea4cd6ef5cbbf57af3ffd40a8298febabc934d595475563089e77db3

  • SSDEEP

    6144:CyF3PFKs78vpRTlEqxF6snji81RUinKbL1:3Php

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\872c7ab24152ef4163141ed7ca271ebc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\872c7ab24152ef4163141ed7ca271ebc_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:3648
    • C:\Users\Admin\buiov.exe
      "C:\Users\Admin\buiov.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:1192

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\buiov.exe

    Filesize

    232KB

    MD5

    a8ca9892bbd2aa186f4c5d732eb97517

    SHA1

    d48b702973d1ee1e752d89cee670175af5a393bd

    SHA256

    3bd084aea9f123bbd20651eb40e49220b6bfb5cd424a4cf885766fed79d51ac6

    SHA512

    b3e45d7554e866e1569087363396f44b824f27830623ee8720920f09bb04098ee6f49022241e889a4f84150c027d472227a38a48df5f9809d957d11136f993ed