: Open the file in a versatile player like VLC Media Player and check the "Codec Information" under the Tools menu to see the technical stream data.
: Files shared via peer-to-peer (P2P) networks or private cloud storage often use obscured names to avoid automated copyright filters. Ajb08603 mp4
: Recall where the file was downloaded from or which application was running when it appeared. : Open the file in a versatile player
Could you provide more on where you encountered this filename or what you believe the video contains? Ajb08603 mp4