Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-05-2024 11:48

General

  • Target

    1299315c3032491208ef04f8674aa5fa_JaffaCakes118.exe

  • Size

    603KB

  • MD5

    1299315c3032491208ef04f8674aa5fa

  • SHA1

    f320997f6f3479ef392be9f35e1f5b600f9f42f1

  • SHA256

    11724aa717338d3fa58fc1c6d92cdf9b64ca986b0e2f6cde1a5d795d6277fc4c

  • SHA512

    41025d5293d43d630c932d1b186c75c793cf9430222a90e02c719c2b5a436715c3298626ef1c1567f92a42e468f8abb5c053e44c38d339b1e75c5b329ed8474a

  • SSDEEP

    6144:BHmz3+U3iFSMYN5Exf2o9LnIH8iN/wfGB4Dosj1E+6VVPviDlSOcwhxAwOhgYwj7:9rtZmXN4zJpGPqlSpwhm4s5bsGSCs5

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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1299315c3032491208ef04f8674aa5fa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1299315c3032491208ef04f8674aa5fa_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
      2⤵
        PID:2196
      • 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
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2696
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
      1⤵
      • Suspicious use of FindShellTrayWindow
      PID:2664

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      603KB

      MD5

      1299315c3032491208ef04f8674aa5fa

      SHA1

      f320997f6f3479ef392be9f35e1f5b600f9f42f1

      SHA256

      11724aa717338d3fa58fc1c6d92cdf9b64ca986b0e2f6cde1a5d795d6277fc4c

      SHA512

      41025d5293d43d630c932d1b186c75c793cf9430222a90e02c719c2b5a436715c3298626ef1c1567f92a42e468f8abb5c053e44c38d339b1e75c5b329ed8474a

    • memory/2196-51-0x0000000002380000-0x0000000002382000-memory.dmp

      Filesize

      8KB

    • memory/2664-52-0x0000000000120000-0x0000000000122000-memory.dmp

      Filesize

      8KB

    • memory/2696-64-0x0000000004300000-0x0000000005362000-memory.dmp

      Filesize

      16.4MB