Overview

overview

10

Static

static

1

ORDER-2389...df.vbs

windows7-x64

8

ORDER-2389...df.vbs

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/06/2023, 05:03

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General

  • Target
    ORDER-238974_LIST.pdf.vbs
  • Size 8KB
  • Sample230616-fpsm3ach52
  • SHA256 b03c3e78db7276e75dbb30b144d6dba8d417c25a59ea563c5691b5dbdc2b69e9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
wshratpersistencetrojan

Malware Config

Extracted

Family

  • wshrat

C2

  • http://chongmei33.publicvm.com:7045

Signatures

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

    trojanwshrat
  • Blocklisted process makes network request 31 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Script User-Agent 27 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ORDER-238974_LIST.pdf.vbs"
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3340
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\SSYDSS.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:212

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        SSYDSS.js
        • Path C:\Users\Admin\AppData\Local\Temp\SSYDSS.js
        • Size 539KB
        • SHA256 3579c1346320ede28d523e6074c0729d2ae8e64e8e7983161097e733b259a7fd
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        SSYDSS.js
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SSYDSS.js
        • Size 539KB
        • SHA256 3579c1346320ede28d523e6074c0729d2ae8e64e8e7983161097e733b259a7fd
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download