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.
Are Internet Macros Dead or Alive? covers how attackers are still finding ways to make macros effective despite new security measures.
Here’s a breakdown of why that specific file type is so interesting from a security perspective: The "Macro-Archive" Strategy