Analysis

  • max time kernel
    91s
  • max time network
    106s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 20:32

General

  • Target

    6575f998955413862891b9db73900178808d1cf97836473e7c2a84b2c546179b.exe

  • Size

    152KB

  • MD5

    9229fa27474e3c5c1ed48945afa12210

  • SHA1

    f4ff4011979437e381304ce9371896e1a172f11c

  • SHA256

    6575f998955413862891b9db73900178808d1cf97836473e7c2a84b2c546179b

  • SHA512

    7e6f76dc1748d3062c0cce988da9390487cbed0d712e20cbc052ee7e555a0eaace2967544bf5d1bd5f7b322ef4703f3ff41eef72409bd90ca61c4ee8f7c71212

  • SSDEEP

    3072:D3CmAwS/8riSScBMSMVrNbtr2BJ3TET7FqU5z56b1v:D30wS0riSlVMZNRwJjc9hk1v

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

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

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6575f998955413862891b9db73900178808d1cf97836473e7c2a84b2c546179b.exe
    "C:\Users\Admin\AppData\Local\Temp\6575f998955413862891b9db73900178808d1cf97836473e7c2a84b2c546179b.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    PID:4972
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1088
      2⤵
      • Program crash
      PID:1280
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 4972 -ip 4972
    1⤵
      PID:4932
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:5052

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/4972-132-0x0000000000400000-0x0000000000417000-memory.dmp

              Filesize

              92KB

            • memory/4972-133-0x0000000000400000-0x0000000000417000-memory.dmp

              Filesize

              92KB