Yes. It's true. Believe it or not, this is another step in the malware world. We are seeing spam sent with MP3 attachments, the audio quality is pretty bad, and the file names are different but try to trick users using names as oursong.mp3, bartsimpson.mp3, ciara.mp3, cassidy.mp3, etc.
Actually, it is a pump and dump spam that talks about a Canadian company that could have incredible results in USA. It seems that it is being sent out from the Storm Worm network. Be careful and of course, don't pay attention to these kind of messages.
How long should we wait to see an MP4 spam?