General

  • Target

    https://t.me/RELabDiscussion/30886

  • Sample

    241224-csyfyayqb1

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

95.216.52.21:7575

Mutex

xdnqiaxygefjfoolgo

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

Mutex

gavhqcekvoufwwtkygf

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Targets

    • AsyncRat

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

    • Asyncrat family

    • Modifies Windows Defender Real-time Protection settings

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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.

    • Accesses Microsoft Outlook profiles

    • Checks installed software on the system

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks