Overview

overview

10

Static

static

1

New Text Document.txt

windows10-ltsc_2021-x64

10

Sharing

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General

  • Target
    New Text Document.txt
  • Size 26B
  • Sample260722-pnpdpavdlc
  • SHA256 14dccd7cc29a548db9a65360195b38f9b709250b7ac4e4a0f9ee23fa1b4425ab
  • MD5 SHA1 SHA512
Score
10/10
asyncratdefaultdefense_evasiondiscoveryexecutionpersistenceratsuricata

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • 188.161.149.211:30120

Mutex

  • D8rBcsYFmkeY

Attributes
  • delay

    3

  • install

    true

  • install_file

    Client.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      New Text Document.txt
    • Size 26B
    • SHA256 14dccd7cc29a548db9a65360195b38f9b709250b7ac4e4a0f9ee23fa1b4425ab
    • MD5 SHA1 SHA512
    Score
    10/10
    defaultdefense_evasiondiscoveryexecutionasyncratpersistenceratsuricata

    • Async RAT payload

      rat

    • Family: AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Suricata alert: AsyncRAT Malware Default X.509 Certificate Detected - Inbound

      Network activity triggered a Suricata alert

      suricataasyncrat

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks