did you see this file name? (e.g., a specific email, a private forum, a file path)
is the expected subject matter? (e.g., security, technical, financial)
The name suggests it could be a "Secret" session/meeting recording or data dump from a specific, private organization, team, or project titled "SS" in March 2023.
RAR files (compressed archives) from unknown or untrusted sources are common vectors for malware. Do not extract or open this file unless it comes from a trusted, verified source.
If you are looking for official reports from March 2023, you might be looking for: