Analysis

  • max time kernel
    150s
  • max time network
    140s
  • 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 18:29

General

  • Target

    d6df99177071154a84af23983805ded0_JaffaCakes118.exe

  • Size

    156KB

  • MD5

    d6df99177071154a84af23983805ded0

  • SHA1

    7d4b426cb8eb9a9af8e62a076e2f7f02ebe988bb

  • SHA256

    7026766a8999707146dc7265024951c91384c39013a32a9f8442d8a99445110c

  • SHA512

    4768848fbb46c3b88cf72fe84bb854843bbcb3304e25412d1af8ce6215b3ae9fef8eb9fdcb974c1949c1bb8e6004bf68218dcfd819281057d88ce12c81507ad8

  • SSDEEP

    1536:qqrFv3LhRsNLCNMSG5+SUdqeHAQWXZaNwRRczNoU1LbLkOVChh:7rF3zaZLBRWhlLSh

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\d6df99177071154a84af23983805ded0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d6df99177071154a84af23983805ded0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Users\Admin\nuadouk.exe
      "C:\Users\Admin\nuadouk.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:3584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\nuadouk.exe

    Filesize

    156KB

    MD5

    9e660e1f60087964d2978e309529b389

    SHA1

    fe329949ab964f1dbba4287b48eb90d0f3ea1cdf

    SHA256

    8f8358d8f840ce21206390d6dc1ccacf1cb01698adce8d57bfd1c2378142548f

    SHA512

    18b6da0beb75b5b9728b911510d399ff4f8ea7ba1046fca062bae8d90a32c4fcacdf6bceb1df30de67337263ee2a53de3e2471d851749ca61cd86e9d788d3710