Do you have the of the file, or can you describe the context of where it was found so I can look for related attack patterns?

If found on a corporate machine, isolate the host and pull the pill01.7z file for professional SOC (Security Operations Center) review.

Does it attempt to write to Registry keys or Startup folders? Recommendations

A small archive that extracts into a massive file (a "decompression bomb"). 3. Dynamic Analysis (Sandbox)

Before opening the archive, you should generate cryptographic hashes to identify the file across global databases like VirusTotal.

Run a hash tool to see if this specific archive has been flagged by antivirus vendors.