If it’s in WhatsApp/Media , it was sent to you by a contact. 2. How to Open the File If you are having trouble playing the .mp4 :
Because this is a specific file on your device and not a known viral video or public media release, I cannot see the content of the video itself. However, 1. Identify the Source 161726335438.mp4
Files with random numeric names are sometimes shared in online communities (like Discord or 4chan) as "bait" or "screamer" videos (videos that start quiet and end with a loud jump-scare). If it’s in WhatsApp/Media , it was sent