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,”

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