Analysis

  • max time kernel
    117s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2023 11:45

General

  • Target

    encodings/big5hkscs.pyc

  • Size

    1KB

  • MD5

    858c2aed1b411db7f240127f465907be

  • SHA1

    cf54bc905de4425f38531ea1abd15e624946f9c9

  • SHA256

    91a65aa014bed7de528559afea50b1d31fa03df301144ae9cf3a062be7cf7dbd

  • SHA512

    98e10efc0594f9066d43323b339cdd7402ada87ff8e1bfa723351f19dd600a13b98151db0a947f3d1e0994cd99f92cd5e4570ff1c4c64000006d8a1047686224

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\encodings\big5hkscs.pyc
    1⤵
    • Modifies registry class
    PID:1064
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:880

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads