Overview

overview

10

Static

static

10

AsyncClient.exe

windows7-x64

10

AsyncClient.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    AsyncClient.exe

  • Size

    52KB

  • Sample

    240616-1s387atfjk

  • MD5

    f5a2b23f785fb2eee6724b41b812b206

  • SHA1

    4d9142e9a7280e4df3ddf309c253531b0aa66b2f

  • SHA256

    d7c2f3e3d806f37f3b511e8a0ade1b000b30761bf3f96adc92235e134387b2ce

  • SHA512

    39c5b0ebf80b77b5b65a224e9e069cb1407d362149ee9478c83f3fb0d412bc462804e2f63b0a7579844dee9abb47a714b5b550d554fe9ef4d26f76b75f84c0e4

  • SSDEEP

    1536:GuK59THfe2nElVmsxQhcbZm+M+7wbDjd31YGqMx:GuK3THfe2iVmsxQhcbZfM+SILMx

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

6knTUdMwFO0b

Attributes
  • delay

    3

  • install

    true

  • install_file

    vortext.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/s14cUU5G

aes.plain

Targets

    • Target

      AsyncClient.exe

    • Size

      52KB

    • MD5

      f5a2b23f785fb2eee6724b41b812b206

    • SHA1

      4d9142e9a7280e4df3ddf309c253531b0aa66b2f

    • SHA256

      d7c2f3e3d806f37f3b511e8a0ade1b000b30761bf3f96adc92235e134387b2ce

    • SHA512

      39c5b0ebf80b77b5b65a224e9e069cb1407d362149ee9478c83f3fb0d412bc462804e2f63b0a7579844dee9abb47a714b5b550d554fe9ef4d26f76b75f84c0e4

    • SSDEEP

      1536:GuK59THfe2nElVmsxQhcbZm+M+7wbDjd31YGqMx:GuK3THfe2iVmsxQhcbZfM+SILMx

    Score
    10/10
    asyncratdefaultrat

    • AsyncRat

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

      ratasyncrat

    • Async RAT payload

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks