Overview

overview

10

Static

static

10

tmpyzk0c4vx.exe

windows10-ltsc_2021-x64

10

tmpyzk0c4vx.exe

windows10-2004-x64

10

tmpyzk0c4vx.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    tmpyzk0c4vx
  • Size 45KB
  • Sample260522-x6zw5sf14v
  • SHA256 fce223eb8d3e1ae81cd4d54f4f74a1a551c42dedd5c8d56554a4a23ade81db3d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
asyncratdefaultdefense_evasiondiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • sfrecess.com:443

  • sfrecess.com:80

  • sfrecess.com:7797

  • sfrecess.com:8707

  • sfrecess.com:6620

  • www.sfrecess.com:443

  • www.sfrecess.com:80

  • www.sfrecess.com:7797

  • www.sfrecess.com:8707

  • www.sfrecess.com:6620

  • remote.sfrecess.com:443

  • remote.sfrecess.com:80

  • remote.sfrecess.com:7797

  • remote.sfrecess.com:8707

  • remote.sfrecess.com:6620

  • sasser.sfrecess.com:443

  • sasser.sfrecess.com:80

  • sasser.sfrecess.com:7797

  • sasser.sfrecess.com:8707

  • sasser.sfrecess.com:6620

Mutex

  • 3E5LMhaZAwK3

Attributes
  • delay

    0

  • install

    true

  • install_file

    mf18w.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      tmpyzk0c4vx
    • Size 45KB
    • SHA256 fce223eb8d3e1ae81cd4d54f4f74a1a551c42dedd5c8d56554a4a23ade81db3d
    • 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

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Tasks