The -120 match favorites have been doing shitty in this World Cup. Aka Belgium. Russia wants the draw so they can try their luck against Algeria.
A draw will not do them any good. That will leave them with just 2 points from 2 games. Anyway they need a win against Algeria to progress to the next round (and a Belgian victory against South Korea).
Yes and then a win from Algeria would give them 5 points and qualification. There is no other team in the group that is dominating. Therefore it is completely open to be taken and they would be more than satisfied to get a draw with Belgium.