This is the Mirage Hobby 35106 kit in 1/35 scale, of the ‘Russian Light Tank, T-50AA’.
The design referred to the T-34. Based on the prototype of the series production started in Leningrad. In April 1941, the vehicle has been adopted to equip the Red Army. Tanks took part in the battles on the Karelian Isthmus.
Source: Trumpeter website