General

  • Target

    https://cdn.discordapp.com/attachments/1271492917545930783/1272576634838323265/DeltaInstaller.exe?ex=66bb7ad9&is=66ba2959&hm=7439a4e47844371d373c91612f1481f486bbf2cb7cec09509e03c13594c00f3d&

  • Sample

    240812-z9l6kavfle

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

0.tcp.eu.ngrok.io:11556

Mutex

FcLxn0AMKXuS

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %Temp%

aes.plain

Targets

    • Target

      https://cdn.discordapp.com/attachments/1271492917545930783/1272576634838323265/DeltaInstaller.exe?ex=66bb7ad9&is=66ba2959&hm=7439a4e47844371d373c91612f1481f486bbf2cb7cec09509e03c13594c00f3d&

    • AsyncRat

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

    • Async RAT payload

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks