Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-07-2024 07:41

General

  • Target

    5b04c788a0bef1d01b214986d0351952_JaffaCakes118.exe

  • Size

    88KB

  • MD5

    5b04c788a0bef1d01b214986d0351952

  • SHA1

    8ae8e8a013ae15b4d6f48265af09eec1c55a4568

  • SHA256

    a7bba1b96873a8a39a2e590e1fd73d2fda6004f0350beabca602d27e28a46497

  • SHA512

    e5c788b20a5734e511428bfd87671f79c72fd51f6acd5fca93a43ac4083cb52f009dbb17d8ad43b2b669e75d7600ebfca96554ad737617620b4c0c991657da06

  • SSDEEP

    1536:u+mC+RIm8WP+zYpqdXBsYJWF+FBFIFGFYFcDSZVGa:H+RfT+9Z6P

Score
10/10

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 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b04c788a0bef1d01b214986d0351952_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5b04c788a0bef1d01b214986d0351952_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Users\Admin\fwjuc.exe
      "C:\Users\Admin\fwjuc.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\fwjuc.exe

    Filesize

    88KB

    MD5

    318dd92d6875d1798ad0cad7df761904

    SHA1

    741f21f8b026c4a8b89221f7546d24e144a169d7

    SHA256

    741c074bc221ecd519df9a36aa802175d82cbeafb453b0ea94c5f71b867a4a92

    SHA512

    cf21e6eb18aee89cb091846eee7d398e7328ccee999cf4692cafd169725c2c7cd83eac0f6d586c24ed9e8db1252ab184f74a45d91b0b5e70af8742409902d54f