General

  • Target

    https://mega.nz/file/OBIFQboR#MLsU-oT3glg73iBIY3JrxmlA697RE4Z3v-i5JDnh2lIEulen

  • Sample

    250331-vkhdvswp19

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

EulenV4

Mutex

chxtzuezuve

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/KnhCGRrn

aes.plain

Targets

    • Target

      https://mega.nz/file/OBIFQboR#MLsU-oT3glg73iBIY3JrxmlA697RE4Z3v-i5JDnh2lIEulen

    • AsyncRat

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

    • Asyncrat family

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender notification settings

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Stormkitty family

    • Async RAT payload

    • Drops file in Drivers directory

    • 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.

    • Accesses Microsoft Outlook profiles

    • Checks installed software on the system

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

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v15

Tasks