Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11-05-2024 23:07

General

  • Target

    682572888b60da06809d5f5dbce53b9a1bfede2d7a2deae9039e3020d68b1a73.exe

  • Size

    465KB

  • MD5

    ae6e96376af9418752b9c2c9e9e1debf

  • SHA1

    bbb067145926697c07e80a0308106112b1189039

  • SHA256

    682572888b60da06809d5f5dbce53b9a1bfede2d7a2deae9039e3020d68b1a73

  • SHA512

    4164d0c607636d6ba462d9556c7841cb77131e693c6a0af15cb062222052e099bfcc44f941f9fd5f1e19f585ca9b85d2e4f25b994f2b1415deb48782d64971b7

  • SSDEEP

    12288:IVl4yCL6f6f0xB81IWa46A9jmP/uhu/yMS08CkntxYRYL:a7k3fmP/UDMS08Ckn3X

Malware Config

Extracted

Family

kutaki

C2

http://newlinkwotolove.club/love/three.php

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).

  • 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\682572888b60da06809d5f5dbce53b9a1bfede2d7a2deae9039e3020d68b1a73.exe
    "C:\Users\Admin\AppData\Local\Temp\682572888b60da06809d5f5dbce53b9a1bfede2d7a2deae9039e3020d68b1a73.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
      2⤵
        PID:2724
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\exljvofk.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\exljvofk.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2460
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
      1⤵
      • Suspicious use of FindShellTrayWindow
      PID:2388

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      465KB

      MD5

      ae6e96376af9418752b9c2c9e9e1debf

      SHA1

      bbb067145926697c07e80a0308106112b1189039

      SHA256

      682572888b60da06809d5f5dbce53b9a1bfede2d7a2deae9039e3020d68b1a73

      SHA512

      4164d0c607636d6ba462d9556c7841cb77131e693c6a0af15cb062222052e099bfcc44f941f9fd5f1e19f585ca9b85d2e4f25b994f2b1415deb48782d64971b7

    • memory/2388-63-0x00000000001B0000-0x00000000001B2000-memory.dmp

      Filesize

      8KB

    • memory/2724-62-0x0000000000330000-0x0000000000332000-memory.dmp

      Filesize

      8KB