You download a .rar (like the one you mentioned) or .zip file. This is often done to hide the malicious code from email scanners that might block a direct Office attachment.
Macro-Blocking & How Threat Actors Are Adapting - Proofpoint Office Macro Downloader.rar
It looks like you're diving into some cybersecurity research! Finding a file named Office Macro Downloader.rar is a major red flag, as this is a classic technique used by hackers to deliver malware. You download a