Overview

overview

10

Static

static

10

1299315c30...18.exe

windows7-x64

10

1299315c30...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    130s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2024, 11:48

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General

  • Target
    1299315c3032491208ef04f8674aa5fa_JaffaCakes118.exe
  • Size 603KB
  • Sample240504-nylj4sfh32
  • SHA256 11724aa717338d3fa58fc1c6d92cdf9b64ca986b0e2f6cde1a5d795d6277fc4c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
kutakikeyloggerstealer

Malware Config

Signatures

  • Kutaki

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

    stealerkeyloggerkutaki
  • Kutaki Executable 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1299315c3032491208ef04f8674aa5fa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1299315c3032491208ef04f8674aa5fa_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Windows\SysWOW64\mspaint.exe
        "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp"
        3⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:4552
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe"
      2⤵
      • Executes dropped EXE
      • Maps connected drives based on registry
      • Suspicious use of SetWindowsHookEx
      PID:2156
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
    1⤵
      PID:4620

    Network

          MITRE ATT&CK Enterprise v15

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          Downloads

          lunlerio.exe
          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe
          • Size 603KB
          • SHA256 11724aa717338d3fa58fc1c6d92cdf9b64ca986b0e2f6cde1a5d795d6277fc4c
          • MD5 SHA1 SHA512 SSDEEP
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