Analysis

  • max time kernel
    50s
  • max time network
    59s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    31-03-2023 16:07

General

  • Target

    a/W.class

  • Size

    1KB

  • MD5

    b598fb613cdf0302e0a14b8818fa8547

  • SHA1

    229b28f3422463bc71d8580764ac1de3375888e5

  • SHA256

    89cb3e7830dc8ef34dc3848f89e7450d9635656a62f4a8c004ede1db15ff526d

  • SHA512

    aa220fd6c01383e3e524e824e33c0d14261dbcf122037b7cea0fda006bde2834b195bba3d0012c274b628c3d6130283034ab5cefcaef8a1ef4b3fdf359580444

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a\W.class
    1⤵
    • Modifies registry class
    PID:2240
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1004

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

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Downloads