It’s not unusual for bad actors to inject PDF files with malware. We were reminded of this just two months ago when HP Wolf Security warned in an article titled “PDF malware is not yet dead” of a Snake keylogger campaign. To make matters worse, security researchers at Minerva Labs uncovered some weird behavior within Adobe’s Acrobat Reader

Source: Hot Hardware – Facepalm: Adobe Acrobat Blocks These Popular Antivirus Programs From Scanning PDFs