Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-09-2024 07:54

General

  • Target

    fa042e8a0d68b71d32f542f32867b540_JaffaCakes118.exe

  • Size

    840KB

  • MD5

    fa042e8a0d68b71d32f542f32867b540

  • SHA1

    47782c5a168077e676e1cb7cbcd5776d012544cd

  • SHA256

    12869439e685998781384fdaf2c391675a364dc4bbcdd44123fe2d74f2852a61

  • SHA512

    ea605a2585fbf464c32b18b6b03053edbf3082e4b82f1462feca62374eea1d27b8366962543783ec540e2ce8f5f6ad6dc9d57b8de63af5f76e80c069b1f34d73

  • SSDEEP

    24576:jMq1NY2oyR2I7NlC/VG96r1/kGlVZshDhwd:wye/U9E19lPshwd

Malware Config

Signatures

  • Kutaki

    Information stealer and keylogger that hides inside legitimate Visual Basic applications.

  • Kutaki Executable 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa042e8a0d68b71d32f542f32867b540_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fa042e8a0d68b71d32f542f32867b540_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2388
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\onqymjch.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\onqymjch.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2424
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\onqymjch.exe

    Filesize

    840KB

    MD5

    fa042e8a0d68b71d32f542f32867b540

    SHA1

    47782c5a168077e676e1cb7cbcd5776d012544cd

    SHA256

    12869439e685998781384fdaf2c391675a364dc4bbcdd44123fe2d74f2852a61

    SHA512

    ea605a2585fbf464c32b18b6b03053edbf3082e4b82f1462feca62374eea1d27b8366962543783ec540e2ce8f5f6ad6dc9d57b8de63af5f76e80c069b1f34d73

  • memory/2388-51-0x0000000000250000-0x0000000000252000-memory.dmp

    Filesize

    8KB

  • memory/2740-52-0x0000000000120000-0x0000000000122000-memory.dmp

    Filesize

    8KB