Overview

overview

10

Static

static

Scan00311.js

windows7_x64

10

Scan00311.js

windows10_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    14/10/2021, 14:20

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General

  • Target
    Scan00311.js
  • Size 1.0MB
  • Sample211014-rne65aadhj
  • SHA256 91af9a9dbea4d8d9c979b72dc3dcedc77fef6f5f91f514e0ccc1e338b535d89f
  • MD5 SHA1 SHA512
Score
10/10
wshratpersistencesuricatatrojan

Malware Config

Extracted

Family

  • wshrat

C2

  • http://147.182.241.104:7121

Signatures

  • WSHRAT

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

    trojanwshrat
  • suricata: ET MALWARE WSHRAT CnC Checkin

    suricata: ET MALWARE WSHRAT CnC Checkin

    suricata
  • suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm Checkin 1

    suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm Checkin 1

    suricata
  • Blocklisted process makes network request 29 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • 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\Scan00311.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:2072

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads