: Represents the date the file was saved or processed by the application, specifically December 31, 2022 . WA : Indicates the source application is WhatsApp .
: A sequential counter used to distinguish files created on the same day. This specific file was the 18th video (starting from 0000) processed on that date. VID-20221231-WA0017.mp4
Based on WhatsApp forensics and community documentation, the name is structured as follows: : Identifies the file type as a video. : Represents the date the file was saved