Overview

overview

10

Static

static

1

57679766d7...c52.js

windows7-x64

10

57679766d7...c52.js

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/05/2024, 01:13

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General

  • Target
    57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
  • Size 2.1MB
  • Sample240505-bldyaada93
  • SHA256 57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
wshratexecutionpersistencetrojan

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.

    trojanwshrat
  • Blocklisted process makes network request 32 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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
    execution
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 29 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:3356

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52.js
        • Size 2.1MB
        • SHA256 57679766d792132497921ab478f7802f3599a8d19a9c4190045e3a139e9f2c52
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download