🔒 Cybercriminals are evolving—again. A newly discovered campaign is using weaponized PDF attachments to deliver the Remcos Remote Access Trojan (RAT) through a multi-stage attack chain:
📄 Victims receive a PDF with a malicious link
🧠 Obfuscated JavaScript executes from a remote site
🎯 PowerShell downloads an image embedded with malware via steganography
🐀 Remcos RAT installs quietly—giving attackers full control
🔍 Remcos offers keylogging, webcam/mic access, credential theft, and offline logging—even before contacting the command server.
🚨 Why it matters:
Even “safe” file types like PDFs can be the entry point for sophisticated remote access tools. This highlights the importance of email security awareness, EDR solutions, and disabling risky features like ActiveX.
🛡️ Recommendations:
• Be wary of unexpected PDFs, even from known contacts
• Disable macros/scripts where possible
• Monitor network activity for unusual outbound connections
• Train teams on spear-phishing tactics
🧠 Stay alert. This isn’t just a PDF—it’s a full breach in disguise.
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