Resubmissions

22-07-2024 18:44

240722-xdxw3s1hmd 10

22-07-2024 18:37

240722-w9gpassanj 10

General

  • Target

    https://megawrzuta.pl/download/a37d5e686e4f49742da6a1037228b741.html

  • Sample

    240722-xdxw3s1hmd

Malware Config

Extracted

Family

xworm

C2

185.254.97.15:1337

176.96.138.55:1338

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Extracted

Family

asyncrat

Botnet

Default

C2

185.254.97.15:2024

Attributes
  • delay

    1

  • install

    true

  • install_file

    OperaGx.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      https://megawrzuta.pl/download/a37d5e686e4f49742da6a1037228b741.html

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • AsyncRat

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

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • AgentTesla payload

    • Async RAT payload

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

MITRE ATT&CK Enterprise v15

Tasks