It's a Europe config aircraft. If it was World there would be either a First Class section or flat beds in club.
The catering on the Russian routes is however much better than on most Euro routes, especially in Y where hot meals continue. There is also IFE to Moscow unlike other Euro routes and, although it's not advertised to LED, if one of the most recent A320s with IFE fitted is used (which is usually the case) and the video has been left on board then the FAs will often play it.
The convertible C seats in the Euro 767s are indeed disappointing. They change from 2-3-2 in Y to 2-2-2 in C, which as you can probably calculate doesn't give much extra. Best bet is to go on the second DME flight which uses an A320, not a 767, and get a C seat on the left-hand side.