To provide a helpful analysis, I can help you perform a manual "write-up" if you can share more details:
(e.g., finding a hidden flag, reverse engineering a payload, or recovering a password). QSX.rar
(e.g., a specific CTF platform, a suspicious email, or a GitHub repo). To provide a helpful analysis, I can help
Run sha256sum and check VirusTotal to see if others have flagged it. To provide a helpful analysis
Use exiftool or strings to look for hidden comments or creator info.
Check if the RAR is encrypted or uses "header encryption" (which hides the filenames until the password is entered).