General

  • Target

    755bf95d4f7b4a98186dbb289f6054e4

  • Size

    185KB

  • Sample

    240125-ygvrkaeac6

  • MD5

    755bf95d4f7b4a98186dbb289f6054e4

  • SHA1

    5021fa1659a64a313f67f3a6cd8a092b5a4b33e1

  • SHA256

    3aa4891da8c0e803d25b3d88b46613ba021e3f5b1b2ebfcb07fbe227fb8a5c85

  • SHA512

    e677c8f0635070270de2dd163efb5495a1ae7846fbaa11341496bdc42fb8953a0d76a242c4a73a46f310fb10d77c86f1fe19a6cbb33669a4f71cd92bb3efdc7d

  • SSDEEP

    3072:NMSncRzAOwucoT3xN2azincpbKKp0gV8PCvKRJU6CBnwiAhY6r1dQrLSVhIAHvKp:OSncRlwucAAopbJ0gSCv8nY6r1dQrDAB

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

vlhoangkimpk.net:6606

vlhoangkimpk.net:7707

vlhoangkimpk.net:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    iexplorer.exe

  • install_folder

    %Temp%

aes.plain

Targets

    • Target

      755bf95d4f7b4a98186dbb289f6054e4

    • Size

      185KB

    • MD5

      755bf95d4f7b4a98186dbb289f6054e4

    • SHA1

      5021fa1659a64a313f67f3a6cd8a092b5a4b33e1

    • SHA256

      3aa4891da8c0e803d25b3d88b46613ba021e3f5b1b2ebfcb07fbe227fb8a5c85

    • SHA512

      e677c8f0635070270de2dd163efb5495a1ae7846fbaa11341496bdc42fb8953a0d76a242c4a73a46f310fb10d77c86f1fe19a6cbb33669a4f71cd92bb3efdc7d

    • SSDEEP

      3072:NMSncRzAOwucoT3xN2azincpbKKp0gV8PCvKRJU6CBnwiAhY6r1dQrLSVhIAHvKp:OSncRlwucAAopbJ0gSCv8nY6r1dQrDAB

    • AsyncRat

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

    • Async RAT payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks