Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    02-05-2024 22:31

General

  • Target

    2024 12:59:31 a.m..js

  • Size

    2.1MB

  • MD5

    a6397cdb9e01000e53c123893acad42c

  • SHA1

    6cd4fbdf9d806e21533c546e3aca996d20a611ba

  • SHA256

    010095c8ca094243c44f0d489b55dc1a132e0f776ab71e6bc221ff8c127a810b

  • SHA512

    3f2dd11560d819839697a3f256a9e4dae693f7401d4b870c93d40d1c9d35449de35e7366acf1ca66d537759ff62d6a1859c906d792847074f88740a3536510a5

  • SSDEEP

    49152:DScjW/OiHYKmqYRBWiV0j79VyNBrccl3dndiGrlvU2YpLharpFL5+gzzPsg0m2Qh:/

Malware Config

Extracted

Family

wshrat

C2

http://masterokrwh.duckdns.org:8426

Signatures

  • WSHRAT

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

  • Blocklisted process makes network request 29 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 28 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\2024 12_59_31 a.m..js"
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:2972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2024 12_59_31 a.m..js

    Filesize

    2.1MB

    MD5

    a6397cdb9e01000e53c123893acad42c

    SHA1

    6cd4fbdf9d806e21533c546e3aca996d20a611ba

    SHA256

    010095c8ca094243c44f0d489b55dc1a132e0f776ab71e6bc221ff8c127a810b

    SHA512

    3f2dd11560d819839697a3f256a9e4dae693f7401d4b870c93d40d1c9d35449de35e7366acf1ca66d537759ff62d6a1859c906d792847074f88740a3536510a5