Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 18:34

General

  • Target

    5625d0606494bd36c218e8f9b765be4361cd016579223601f01c47b344121786.exe

  • Size

    151KB

  • MD5

    527b41724c475022594d6c4103127e20

  • SHA1

    b45c675b2d0027515a78e7a3f1a6387b6a24bd14

  • SHA256

    5625d0606494bd36c218e8f9b765be4361cd016579223601f01c47b344121786

  • SHA512

    21b56cf01a3cccc1320536ecdfb863e99f3f65f9808ac3da84f825e8a9dc5e56ef556dbcf075c22ddc7254a86e40696f6a7c063a32d96ff9201a8a121e07eeef

  • SSDEEP

    3072:PbKT6Y6qnPLs9JZBKh4Qu9kW7M/tI7wZdCQ04:Te6qoJjKh4d9CGQ04

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 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5625d0606494bd36c218e8f9b765be4361cd016579223601f01c47b344121786.exe
    "C:\Users\Admin\AppData\Local\Temp\5625d0606494bd36c218e8f9b765be4361cd016579223601f01c47b344121786.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
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 840
      2⤵
      • Program crash
      PID:4336
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 840
      2⤵
      • Program crash
      PID:4608
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1388 -ip 1388
    1⤵
      PID:2012
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:1812

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1388-132-0x0000000000400000-0x0000000000416000-memory.dmp

        Filesize

        88KB

      • memory/1388-134-0x0000000000400000-0x0000000000416000-memory.dmp

        Filesize

        88KB

      • memory/4336-133-0x0000000000000000-mapping.dmp