Overview

overview

10

Static

static

1

PO-65547.js

windows7-x64

10

PO-65547.js

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-02-2024 07:56

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General

  • Target

    PO-65547.js

  • Size

    991KB

  • MD5

    aafc903e2da3937dd6935e68df71841c

  • SHA1

    9b4d79db9a4a6427b054d0d36bcfbd8d5cb45ab6

  • SHA256

    199c0b3ea9f01df011aa51f9b4d8089c5b14b5d33bfcc863134338f3cc8c3f15

  • SHA512

    bc904c346dad17f7c005c1af19ad5205e4995b9c8b63c95bd4a3d153c8de95f391822be40debf6821a3b8bc54a2244c380dc3cd89f54b52cee615d337b6054e7

  • SSDEEP

    6144:XQkWmUsgsefPwG26JSPE3DvZ3L3DevaCx96kZLZYXInDouV5DuiJftC5D/3UBFR3:gXUHMcbP+Pu896t

Score
10/10
wshrattrojan

Malware Config

Extracted

Family

wshrat

C2

http://harold.jetos.com:3609

Signatures

  • WSHRAT

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

    trojanwshrat
  • Blocklisted process makes network request 15 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 14 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\PO-65547.js
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PO-65547.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:4112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\PO-65547.js
    Filesize

    991KB

    MD5

    aafc903e2da3937dd6935e68df71841c

    SHA1

    9b4d79db9a4a6427b054d0d36bcfbd8d5cb45ab6

    SHA256

    199c0b3ea9f01df011aa51f9b4d8089c5b14b5d33bfcc863134338f3cc8c3f15

    SHA512

    bc904c346dad17f7c005c1af19ad5205e4995b9c8b63c95bd4a3d153c8de95f391822be40debf6821a3b8bc54a2244c380dc3cd89f54b52cee615d337b6054e7

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