Overview

overview

10

Static

static

10

Rfq Attach...(9).js

windows7_x64

10

Rfq Attach...(9).js

windows10-2004_x64

10

Sharing

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General

  • Target
    9a80d362fb152ee89fc8bb35e54d65eb9d229b516a57ce43413f2596daef0c8a
  • Size 168KB
  • Sample220206-2vav4acehp
  • SHA256 9a80d362fb152ee89fc8bb35e54d65eb9d229b516a57ce43413f2596daef0c8a
  • MD5 SHA1 SHA512
Score
10/10
asyncratwshratdefaultpersistencerattrojan

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.7B

Botnet

  • Default

C2

  • Asin8989.ddns.net:8989

  • Asin8989.ddns.net:8988

  • asin8988.ddns.net:8989

  • asin8988.ddns.net:8988

Mutex

  • AsyncMutex_6SI8OkPnk

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    false

  • install_file

    Microsoft Handler Services

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Targets

    • Target
      Rfq Attached 202103_Top Urgent (9).js
    • Size 391KB
    • SHA256 92e7d30a12117e09df1df828f25455892238a636bf076640fcfb65bc5ddde4d6
    • MD5 SHA1 SHA512
    Score
    10/10
    wshratpersistencetrojanasyncratdefaultrat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • WSHRAT

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

      trojanwshrat

    • WSHRAT Payload

    • Async RAT payload

      rat

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks