The string you've provided, "fff677491ed9d22a22844ca4e3bd4fda7cb6bbe5.torrent", appears to be a torrent file name. Torrent files are often used for peer-to-peer file sharing on the internet.
The string you've provided, "fff677491ed9d22a22844ca4e3bd4fda7cb6bbe5.torrent", appears to be a torrent file name. Torrent files are often used for peer-to-peer file sharing on the internet.