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Analysis

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

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 06:44

General

  • Target

    eac88f439a17a1635e4aec685607c00c_JaffaCakes118.exe

  • Size

    216KB

  • MD5

    eac88f439a17a1635e4aec685607c00c

  • SHA1

    74582e0561b8de8e935d5c0761443274c0ef20a2

  • SHA256

    8eb6024b7e5209b8715e52c1616fb7484a4ef76c38f0e87661a283ef0cc25fbf

  • SHA512

    da01b7b3d03caf4d5669706139129963a761a1c819a796c354a625d8e887359441b6b45f9cad18bddfd69c43b07c87ca46280e9ba14fb665be20b0a664788e50

  • SSDEEP

    3072:Z2993+BKwcyAHtyU472ydQs1Vsd0WpPGFobtkBdk3ENwE:xBtR6EUEQs1VseWpPGFobC3k3EN5

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 53 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\eac88f439a17a1635e4aec685607c00c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eac88f439a17a1635e4aec685607c00c_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:3132
    • C:\Users\Admin\knkoq.exe
      "C:\Users\Admin\knkoq.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:1180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\knkoq.exe

    Filesize

    216KB

    MD5

    b1173b4604fe884aabb72f64a50541e0

    SHA1

    16f9773d61b7c1ccf5cd84d2962722308004dbe9

    SHA256

    bd48481154d9802819c5b6316bc0a2cc90e8a4968413748c584c69480e27dc11

    SHA512

    5ed6dbf6c5fccfdc61da5177675d34c2d2dde3a51ea3ee668b716fd0943d2edcaf134337544c721a6bedef276c2ccf03b49b6f6b9ebc3c40e595afe7122e2f5b