I checked it with virustotal and it could be a trojan, maybe a self written one!

http://www.virustotal.com/de/analisis/5b...5e73-1195593641

it could also be a method of packaging that it uses which is used in many virusses too. I would not take the risk of opening it! someone should check it in a secure environment, like an emulated system!
Who is responsible for AU uploads? we should contact him.