Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-ltsc 2021-x64

10

AsyncClient.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    AsyncClient.exe

  • Size

    47KB

  • Sample

    250130-27x66avphy

  • MD5

    f06fbe928d0b97d4aacb1370a258ffb5

  • SHA1

    f2d4ca100ae403557d209ca467fa07179802df09

  • SHA256

    61872ee6c75b35f80c3279c549d9d3457fb2557166f2628716ee41e36c03f92c

  • SHA512

    cd2afec901a8aa643ef4448c814704d5928e6975e547c0af0b366e4855b01e551d191f8dffe1b3b86a424a7e0d308cc0303bf3418358696cba6c74e160497cba

  • SSDEEP

    768:wued1TYQZ3VWU1ymhbvmo2qjB4gNaoGGPIzsKZuEK/qR/7Yb8qDdXUVgLZc1yq+4:wued1TYiFhN2poGvJZuEK/kkb8udEWOb

Score
10/10
asyncratwinscriptdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

WinScript

Mutex

WmNVpZFGaUkb

Attributes
  • delay

    3

  • install

    true

  • install_file

    winscript.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/MWg2CxEm

aes.plain

Targets

    • Target

      AsyncClient.exe

    • Size

      47KB

    • MD5

      f06fbe928d0b97d4aacb1370a258ffb5

    • SHA1

      f2d4ca100ae403557d209ca467fa07179802df09

    • SHA256

      61872ee6c75b35f80c3279c549d9d3457fb2557166f2628716ee41e36c03f92c

    • SHA512

      cd2afec901a8aa643ef4448c814704d5928e6975e547c0af0b366e4855b01e551d191f8dffe1b3b86a424a7e0d308cc0303bf3418358696cba6c74e160497cba

    • SSDEEP

      768:wued1TYQZ3VWU1ymhbvmo2qjB4gNaoGGPIzsKZuEK/qR/7Yb8qDdXUVgLZc1yq+4:wued1TYiFhN2poGvJZuEK/kkb8udEWOb

    Score
    10/10
    asyncratwinscriptdiscoveryrat

    • AsyncRat

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

      ratasyncrat

    • Asyncrat family

      asyncrat

    • Async RAT payload

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks