There are many "Ultimate Funny Moments" videos that feature clips of babies or pets described as "Sweetie" or "Crazy".
The most likely connection to "Sweetie" and video files ( .mp4 ) is the American rapper . Key Track: Her hit single "My Type" was released in 2019. Crazy Sweetie mp4
Do not open it. Instead, upload it to a scanning service like VirusTotal to check for hidden threats. There are many "Ultimate Funny Moments" videos that