A highly sophisticated, unpatched zero-day exploit is actively targeting users of Adobe Reader. Detected by the EXPMON threat-hunting system, this malicious PDF file is designed to steal sensitive local data and perform advanced system fingerprinting.

The exploit functions flawlessly on the latest version of Adobe Reader. It requires no user interaction beyond simply opening the malicious document.

The attack begins when a victim opens a specially crafted PDF, initially submitted to malware analysis platforms under the file name “yummy_adobe_exploit_uwu.pdf”.