Generate SHA-256 or MD5 hashes of the archive. Search these hashes on VirusTotal or Hybrid Analysis to see if other researchers have documented its behavior.
Many cybersecurity competitions use humorous or retro-themed names for password-protected archives. If this is from a specific event (like PicoCTF, HackTheBox, or a local competition), providing the event name would help in finding the specific solution.
If you have this file and need to perform a "deep write-up" for technical or security purposes, here is the standard methodology used by analysts:
Knowing the source website or the specific context (e.g., a university lab, a GitHub repo, or a suspicious email) would allow for a much more detailed technical breakdown.
Use tools like 7z l -slt StairMaster2000.7z to view file headers, compression methods, and timestamps without extracting the content.