Because "SNC" is a standard prefix for Sony camera images (followed by a 5-digit sequence), this specific filename appears in various unrelated contexts across the web:
You can upload the photo to Google Lens to see if it has been published online in a specific article or guide. SNC17635.jpg
Many people have this file in their personal Google Photos or hard drive backups simply because their camera reached that number in its sequence. How to identify your specific file: Because "SNC" is a standard prefix for Sony
It appears in file lists for adult-oriented image sets or torrents where the original camera filenames were preserved. Right-click the file, go to Properties (Windows) or
Right-click the file, go to Properties (Windows) or Get Info (Mac), and look at "Details." This will often tell you the exact camera model used and the date the photo was taken.
It is often seen in old forum posts (dating back to 2008) where users uploaded photos of hobbies, such as marine aquariums or reef tanks .