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Analysis

  • max time kernel
    149s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/09/2024, 03:24

General

  • Target

    d5948f17d4de453ecb09d26bb5f4a0d2_JaffaCakes118.exe

  • Size

    88KB

  • MD5

    d5948f17d4de453ecb09d26bb5f4a0d2

  • SHA1

    7376a84a0ec85824999ccb68e1edad6c386f0a8e

  • SHA256

    ae34c923461e43ee83a4b0c31d3ba8a9a24f8e4fff0785d2706a5138b587e248

  • SHA512

    f1491db9c16c836f07465594c34fa3128344e6db1c5ef1f94d4ab117ac2c70cb4e0221f0176dad0ee8f6d9bb8a036ef0b9de8f652926bce72774c6914a88db1c

  • SSDEEP

    768:rDFI3MrddaqnObOasGEwU8Z1Rbe2kjEQJQ1H7a8zFkzqcwu2:lIceiCU8Z1QjEQJecwu

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).

  • 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\d5948f17d4de453ecb09d26bb5f4a0d2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d5948f17d4de453ecb09d26bb5f4a0d2_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Users\Admin\ruukeuy.exe
      "C:\Users\Admin\ruukeuy.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:220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\ruukeuy.exe

    Filesize

    88KB

    MD5

    5a0a7fb5b41fb15de7b7a27b199a89af

    SHA1

    eeebd699b4cb652c909166990666540b0263d8ba

    SHA256

    15fbaabbb67a32b96c757a28da98b7917738307a40db16d07d84d3fe433a3325

    SHA512

    1e181cd9aa927971f56e79a0b8771a30c1dfdee63b2e85372d338f6e613909f2fba2c20890f694d21c0ed3553bb5abf9438c3f910b35554b4c071f9c323b5c74