Overview

overview

10

Static

static

Scan0101.js

windows7_x64

10

Scan0101.js

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    08/11/2021, 07:37

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General

  • Target
    Scan0101.js
  • Size 1005KB
  • Sample211108-jft2babdh8
  • SHA256 6e275579109009e0df24db2a88abf3fffe7a4ce35e4b99450cb2ba3b622a4eef
  • MD5 SHA1 SHA512
Score
10/10
wshratpersistencetrojan

Malware Config

Extracted

Family

  • wshrat

C2

  • http://140.228.29.190:7121

Signatures

  • WSHRAT

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

    trojanwshrat
  • Blocklisted process makes network request 21 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 20 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Scan0101.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:696

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/696-55-0x000007FEFB761000-0x000007FEFB763000-memory.dmp
        Download