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Analysis

  • max time kernel
    133s
  • max time network
    151s
  • 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

    559638f15ee8a84f7f5bd21ab2ce02e8f1a8cf4ae8124677efc56fe21af296c9.exe

  • Size

    151KB

  • MD5

    90e83ec972a43359ae42797217d94b36

  • SHA1

    4dd1d265543545ec1e060aaef9edb9313ba35f59

  • SHA256

    559638f15ee8a84f7f5bd21ab2ce02e8f1a8cf4ae8124677efc56fe21af296c9

  • SHA512

    6af130d9d9dd9b79e15ffbfde08bcc53dab5931ec5b68513b55ab4347c9c63248382e49d2617360a984499801fd5b04b3a05bb30521f367b4eeae87c166aea35

  • SSDEEP

    3072:Z2tqGoZ6mjYvTveHI9d5NxyZSR9zjT3LPu01oAfV7hD:ZyqGaETBvPZ1dfV7F

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\559638f15ee8a84f7f5bd21ab2ce02e8f1a8cf4ae8124677efc56fe21af296c9.exe
    "C:\Users\Admin\AppData\Local\Temp\559638f15ee8a84f7f5bd21ab2ce02e8f1a8cf4ae8124677efc56fe21af296c9.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:1748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 1104
      2⤵
      • Program crash
      PID:528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1748 -ip 1748
    1⤵
      PID:1988
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4820

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1748-132-0x0000000000400000-0x0000000000416000-memory.dmp

        Filesize

        88KB

      • memory/1748-133-0x0000000000400000-0x0000000000416000-memory.dmp

        Filesize

        88KB