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

    48KB

  • Sample

    250302-tjyh1sykx5

  • MD5

    c73e9ac2a8016900540f7e8c076a0c6c

  • SHA1

    a06194d2d31c4092bafe50b7fe034c2df6eeae64

  • SHA256

    6d52f72d16a4e5057ba82b43278e47b4c44d3d1ec8566681e72bfe21d7e86a63

  • SHA512

    a6c92ba547761d28374b56b433fb75bec1e7c12c060c77bcb32b570b3c6a390a0cd12ee7ed66a3cc5f4ea70f20fa85720b082604988b9ddcd7d88f5ee61b7e33

  • SSDEEP

    768:iuUjVTwkbBHWU72ZcFmo2qjuG2aJbnOPI2MgCZDXoN0be7UX+xoLlM6ZmR3i58TP:iuUjVTwA4M2op2MgCXoKbGUXooLl/Z8v

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

EsPbolIGiMu1

Attributes
  • delay

    3

  • install

    true

  • install_file

    ratatoulie.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/hcwJVFkr

aes.plain

Targets

    • Target

      AsyncClient.exe

    • Size

      48KB

    • MD5

      c73e9ac2a8016900540f7e8c076a0c6c

    • SHA1

      a06194d2d31c4092bafe50b7fe034c2df6eeae64

    • SHA256

      6d52f72d16a4e5057ba82b43278e47b4c44d3d1ec8566681e72bfe21d7e86a63

    • SHA512

      a6c92ba547761d28374b56b433fb75bec1e7c12c060c77bcb32b570b3c6a390a0cd12ee7ed66a3cc5f4ea70f20fa85720b082604988b9ddcd7d88f5ee61b7e33

    • SSDEEP

      768:iuUjVTwkbBHWU72ZcFmo2qjuG2aJbnOPI2MgCZDXoN0be7UX+xoLlM6ZmR3i58TP:iuUjVTwA4M2op2MgCXoKbGUXooLl/Z8v

    Score
    10/10
    asyncratdefaultdiscoveryrat

    • 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

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks