Nnsmfis15.7z -

In forensics challenges like this, the answer is rarely in the file content itself. Look for:

If it asks for a password, the password is often found in a previous "easy" challenge or via a "strings" search on a related image. 3. Deep Extraction NNSMFIS15.7z

Use the file command in Linux to confirm it is truly a 7z archive. 2. Archive Inspection In forensics challenges like this, the answer is

Use 7z l NNSMFIS15.7z to view filenames without extracting. In forensics challenges like this

Run binwalk -e NNSMFIS15.7z to look for "nested" files hidden within the archive structure.