http://ssd.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/ps/module/how-avoid-phishing-attacks
When you open the PDF, it may even display pictures of Boris’ kids, but it also quietly installs malware on your device that can be used to spy on you. Uncle Boris didn't send that email, but someone who knows you have an Uncle Boris (and that he has children) did. The PDF document that you clicked on started up your PDF reader, but took advantage of a bug in that software to run its own code.