Matrix Push C2 Uses Browser Notifications for Fileless, Cross-Platform Phishing Attacks

Cross-Platform Phishing Attacks Emerge with Matrix Push C2's Browser Notifications

In a concerning development, researchers have discovered a new wave of fileless, cross-platform phishing attacks leveraging browser notifications. The attacks are attributed to Matrix Push C2, a sophisticated malware framework that utilizes browser notifications to deliver malicious payloads.

How it Works

Matrix Push C2 relies on a web-based interface to interact with the malware, which is designed to be highly modular and adaptable. The framework uses a combination of JavaScript and HTML to create a seamless user experience, making it difficult for victims to detect the malicious activity.

Here's a high-level overview of the attack process:

1. Initial Infection: The victim receives a phishing email or visits a compromised website, which triggers the download of a malicious JavaScript file.
2. Browser Notification: The JavaScript file creates a browser notification, which appears as a legitimate system alert. The notification prompts the user to allow the malware to access their system.
3. Malware Execution: Once the user grants permission, the malware is executed, and it begins to communicate with the Matrix Push C2 server.
4. Payload Delivery: The server delivers a payload, which can be a variety of malicious files, including executables, scripts, or even other malware.

Technical Details

The Matrix Push C2 framework uses a range of techniques to evade detection, including:

• Code obfuscation: The malware uses code obfuscation techniques to make it difficult for security software to detect.
• Domain name generation: The malware generates random domain names to communicate with the server, making it challenging to track.
• Browser fingerprinting: The malware collects information about the victim's browser and system configuration to create a unique fingerprint.

Implications

The emergence of Matrix Push C2 highlights the growing threat of fileless, cross-platform phishing attacks. These attacks are particularly concerning because they can evade traditional security measures and deliver highly sophisticated payloads.

To mitigate this threat, organizations should:

• Implement robust security awareness training: Educate employees on the risks of phishing attacks and the importance of verifying the authenticity of system alerts.
• Use advanced threat detection tools: Invest in security software that can detect and block fileless malware and cross-platform attacks.
• Monitor browser activity: Regularly monitor browser activity to detect suspicious behavior and prevent malware execution.

Code Analysis

Here's an example of the JavaScript code used to create the browser notification:

// Create a browser notification
const notification = new Notification('System Alert', {
  body: 'Your system is at risk. Please allow the malware to access your system.',
  icon: 'https://example.com/malware-icon.png'
});

// Add event listener to handle user response
notification.addEventListener('click', () => {
  // Grant permission to access system
  chrome.permissions.request({
    permissions: ['activeTab']
  }, (granted) => {
    if (granted) {
      // Execute malware
      chrome.tabs.executeScript({
        code: 'eval("malware_code")'
      });
    }
  });
});

This code creates a browser notification with a malicious payload and adds an event listener to handle the user's response. If the user grants permission, the malware is executed.

Source: https://thehackernews.com/2025/11/matrix-push-c2-uses-browser.html