Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-2004-x64

10

AsyncClient.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260925-tt4ssa1bnb
  • SHA256 344b4dc437d2712fba99f25b4042b59c2a92e7c8bf3a456a8df33f9c91eb8798
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
asyncratdefaultdefense_evasiondiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • thailan.co:6606

  • thailan.co:7707

  • thailan.co:8808

  • thailan.co:8080

  • thailan.co:80

  • thailan.co:443

  • thailan.co:8443

  • slot88ku6.co:6606

  • slot88ku6.co:7707

  • slot88ku6.co:8808

  • slot88ku6.co:8080

  • slot88ku6.co:80

  • slot88ku6.co:443

  • slot88ku6.co:8443

  • 98win.fast:6606

  • 98win.fast:7707

  • 98win.fast:8808

  • 98win.fast:8080

  • 98win.fast:80

  • 98win.fast:443

Mutex

  • KrfQPlnmWc8w

Attributes
  • delay

    3

  • install

    true

  • install_file

    ChromeUpdate.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      AsyncClient.exe
    • Size 45KB
    • SHA256 344b4dc437d2712fba99f25b4042b59c2a92e7c8bf3a456a8df33f9c91eb8798
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

    • Async RAT payload

      rat

    • Family: AsyncRat

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

      ratasyncrat

    • Checks computer location settings

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

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks