This file is from a chinese game torrent, called Fantasia Sango 3:
Original file name: SF3.exe
Virus description: Win32:neptunia-HZ [trj]
I want to thank the great Avast team for being able to detect this trojan, i was able to delete it, i never thought this could be one, thank you again Avast Team.
Otaku Ichise yours forever