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Overview

overview

10

Static

static

10

wyrecover (1).js

windows7-x64

10

wyrecover (1).js

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2022, 17:15

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General

  • Target

    wyrecover (1).js

  • Size

    188KB

  • MD5

    fffb69df585df4ed900ba69aef15c41e

  • SHA1

    2e8e68b4616e28fa4d829cfe1a47e2a2006c9fb4

  • SHA256

    ad718edd0bead205d5c8e0dc326a5c89ca3ba177914e6d16fe03a09c5f9984f3

  • SHA512

    0494c53e766375fe4b3f56725e65743cf92835a38bf60d3095ace26b9a947dd840282de2f93d3b333dcaf3ba6fd287cf3a7219b722e8f4f92c5c8210b86b97c4

  • SSDEEP

    3072:GZebURCmAvEzHveGK/63H5pjOjOfQ0bamXbIpklgVDSxGfmuZJR:SRChmveGKyH5pjOjOoMhAklgF2GuuZ/

Score
10/10
wshratpersistencetrojan

Malware Config

Extracted

Family

wshrat

C2

http://45.139.105.174:3670

Signatures

  • WSHRAT

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

    trojanwshrat
  • Blocklisted process makes network request 20 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 19 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\wyrecover (1).js"
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:4708

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads