Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-06-2023 14:55

General

  • Target

    Request For Quotation.js

  • Size

    926KB

  • MD5

    e1fce1614b7ce17de7b7de01ebcbf1a9

  • SHA1

    83ca60f9e8e25437881338b8af9f8136b4925980

  • SHA256

    af8168e035939256e97650454e425e61c561576570f82bc440327a2347d8966a

  • SHA512

    6b9ba0e52ca0247d85aed3f3f4e00b294e595ddcb118992dc4cb315513dbb50188d7064a044b329b029929ddb5c1da7500a30de23a1d3e0de35385b4950bf66d

  • SSDEEP

    6144:QQPrN4dEtorFCPqFnJKw1KYWn8b69Va0qP2XEhvv0QQpv+HtXoQZybO2slkTZJ3b:TuWUrA

Score
10/10

Malware Config

Extracted

Family

wshrat

C2

http://harold.2waky.com:3609

Signatures

  • WSHRAT

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

  • Blocklisted process makes network request 13 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 11 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\Request For Quotation.js"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Request For Quotation.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:2104

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Request For Quotation.js
    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Request For Quotation.js
    Filesize

    926KB

    MD5

    e1fce1614b7ce17de7b7de01ebcbf1a9

    SHA1

    83ca60f9e8e25437881338b8af9f8136b4925980

    SHA256

    af8168e035939256e97650454e425e61c561576570f82bc440327a2347d8966a

    SHA512

    6b9ba0e52ca0247d85aed3f3f4e00b294e595ddcb118992dc4cb315513dbb50188d7064a044b329b029929ddb5c1da7500a30de23a1d3e0de35385b4950bf66d

  • C:\Users\Admin\AppData\Roaming\Request For Quotation.js
    Filesize

    926KB

    MD5

    e1fce1614b7ce17de7b7de01ebcbf1a9

    SHA1

    83ca60f9e8e25437881338b8af9f8136b4925980

    SHA256

    af8168e035939256e97650454e425e61c561576570f82bc440327a2347d8966a

    SHA512

    6b9ba0e52ca0247d85aed3f3f4e00b294e595ddcb118992dc4cb315513dbb50188d7064a044b329b029929ddb5c1da7500a30de23a1d3e0de35385b4950bf66d