General

  • Target

    https://cdn.discordapp.com/attachments/1352929142676656178/1353739636152733706/Synapse_X_Remake.zip?ex=67e2bfc8&is=67e16e48&hm=a526aa3a7379995dd5257c719b6cb2101c1ae8e1c376e93132484333f620d7ca&

  • Sample

    250324-xe2awstyhs

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

yygrxifznl

Attributes
  • delay

    1

  • install

    true

  • install_file

    HostProcesses.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/ZTLk2VSd

aes.plain

Targets

    • Target

      https://cdn.discordapp.com/attachments/1352929142676656178/1353739636152733706/Synapse_X_Remake.zip?ex=67e2bfc8&is=67e16e48&hm=a526aa3a7379995dd5257c719b6cb2101c1ae8e1c376e93132484333f620d7ca&

    • AsyncRat

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

    • Asyncrat family

    • StormKitty

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

    • StormKitty payload

    • Stormkitty family

    • Grants admin privileges

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

    • Blocklisted process makes network request

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • 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

    • Adds Run key to start application

    • 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

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks