I have found this photo in a local news page. The page claims that this fish is a new species that was found by a Malaysian fisherman. Is this true? or it is a known fish and it has a name already?
The front part of the fish looks like part of the cranium of a fish. I'd bet that the tusks have been "made" by removing some bones in the middle.
Well, after having looked at the links given by Remi.b, it seems that it's not even necessary to remove bones. This is probably a Peristediidae.
You can find some images on fishbase