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
  • Sample260717-bhdhcacv5s
  • SHA256 43d31e3a8e334b29304c7d138649e48bea188a9fbba3d29517cc692d475b2fbc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
asyncratdefaultdefense_evasiondiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • letswp.io:443

  • letswp.io:80

  • letswp.io:25

  • letswp.io:8443

  • maxicardano.io:443

  • maxicardano.io:80

  • maxicardano.io:25

  • maxicardano.io:8443

  • tbwg.io:443

  • tbwg.io:80

  • tbwg.io:25

  • tbwg.io:8443

  • thenewflea.org:443

  • thenewflea.org:80

  • thenewflea.org:25

  • thenewflea.org:8443

  • gimkit.io:443

  • gimkit.io:80

  • gimkit.io:25

  • gimkit.io:8443

Mutex

  • pCSCYbV2Pkvk

Attributes
  • delay

    9

  • install

    true

  • install_file

    io.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      AsyncClient.exe
    • Size 45KB
    • SHA256 43d31e3a8e334b29304c7d138649e48bea188a9fbba3d29517cc692d475b2fbc
    • 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