Analysis

  • max time kernel
    149s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 22:29

General

  • Target

    7c60245a65725dc1b28bf82709a4b292b729586da6a86ff9091cde5059b4a4ce.exe

  • Size

    1.3MB

  • MD5

    8f83cdb6e2b59fd44ec017d706ba0cfb

  • SHA1

    bae3855ba40c2c9854d357c335a79a41242ea92e

  • SHA256

    7c60245a65725dc1b28bf82709a4b292b729586da6a86ff9091cde5059b4a4ce

  • SHA512

    23397905fa31dc0701389c8b6127f271f4dafb23a6e7ac64e594bd366b3dcc16ade37fbef9bbcb3d5d560b2ba1e192696034cf9a3dc7ef92634cac8796815675

Malware Config

Signatures

  • Kutaki

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

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

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

  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c60245a65725dc1b28bf82709a4b292b729586da6a86ff9091cde5059b4a4ce.exe
    "C:\Users\Admin\AppData\Local\Temp\7c60245a65725dc1b28bf82709a4b292b729586da6a86ff9091cde5059b4a4ce.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3676
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
      2⤵
        PID:4604
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sygveych.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sygveych.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:452

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sygveych.exe

      Filesize

      1.3MB

      MD5

      8f83cdb6e2b59fd44ec017d706ba0cfb

      SHA1

      bae3855ba40c2c9854d357c335a79a41242ea92e

      SHA256

      7c60245a65725dc1b28bf82709a4b292b729586da6a86ff9091cde5059b4a4ce

      SHA512

      23397905fa31dc0701389c8b6127f271f4dafb23a6e7ac64e594bd366b3dcc16ade37fbef9bbcb3d5d560b2ba1e192696034cf9a3dc7ef92634cac8796815675

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sygveych.exe

      Filesize

      1.3MB

      MD5

      8f83cdb6e2b59fd44ec017d706ba0cfb

      SHA1

      bae3855ba40c2c9854d357c335a79a41242ea92e

      SHA256

      7c60245a65725dc1b28bf82709a4b292b729586da6a86ff9091cde5059b4a4ce

      SHA512

      23397905fa31dc0701389c8b6127f271f4dafb23a6e7ac64e594bd366b3dcc16ade37fbef9bbcb3d5d560b2ba1e192696034cf9a3dc7ef92634cac8796815675

    • memory/452-134-0x0000000000000000-mapping.dmp

    • memory/4604-133-0x0000000000000000-mapping.dmp