We saw this and were shocked, then not. Damn; wav files? the original source of 90’s internet entertainment.
Always always (always) be careful before you click anything in an email (or anything really).
Learn A LOT more here: remember to copy and paste into your browser.
https://en.wikipedia.org/wiki/Steganography
Here is the full article from Geeks Gayann.
Thanks to Hussaina for always writing good interesting stuff.