Cybersecurity researchers have called attention to a new antivirus evasion technique that involves embedding a malicious Microsoft Word file into a PDF file.
The sneaky method, dubbed MalDoc in PDF by JPCERT/CC, is said to have been employed in an in-the-wild attack in July 2023.
"A file created with MalDoc in PDF can be opened in Word even though it has magic numbers and file structure of PDF,"



Source: TheHackerNews
Source Link: https://thehackernews.com/2023/09/beware-of-maldoc-in-pdf-new-polyglot.html