My answer would be "DK" = Don't know.... reasons, now days there's such a market for lures, you get perhaps 20 + different outfits making them, some are "carbon copies" of well known brands, some makers / outfits opens the one year and the next year they will closed down, or that particular spec is discontinued ??? However I would agree, it got the "footprints" of a Rapala....
If you look at some Chinese lures (cheap as sea sand) they very much look like your top end lures, that goes for plastics as well. Well, I would not know the qualiity of their hooks (trebbles) etc...