Overview

overview

10

Static

static

10

a4dd485c93...c5.vbs

windows7-x64

10

a4dd485c93...c5.vbs

windows10-2004-x64

10

Analysis

  • max time kernel
    138s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2024, 01:51

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    a4dd485c93929dbeb0e6fd056e60aba8211005c76e97c581fc87875b6e3703c5.vbs
  • Size 162KB
  • Sample240501-b97khadc6v
  • SHA256 a4dd485c93929dbeb0e6fd056e60aba8211005c76e97c581fc87875b6e3703c5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
wshratpersistencetrojan

Malware Config

Signatures

  • WSHRAT

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

    trojanwshrat
  • WSHRAT payload 1 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 2 IoCs
    persistence
  • Looks up external IP address via web service 8 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\a4dd485c93929dbeb0e6fd056e60aba8211005c76e97c581fc87875b6e3703c5.vbs"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\logger.js"
      2⤵
        PID:5028

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          logger.js
          • Path C:\Users\Admin\AppData\Local\Temp\logger.js
          • Size 8KB
          • SHA256 4b77eac5f82019f3d6bb66fa513a78a65fb0186580e582389f5fcfd337298352
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          a4dd485c93929dbeb0e6fd056e60aba8211005c76e97c581fc87875b6e3703c5.vbs
          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a4dd485c93929dbeb0e6fd056e60aba8211005c76e97c581fc87875b6e3703c5.vbs
          • Size 162KB
          • SHA256 a4dd485c93929dbeb0e6fd056e60aba8211005c76e97c581fc87875b6e3703c5
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download