If you mean the swastika on the cowling it seems to be painted by German soldiers who captured her at the airfield. For sure it isn't a victory marking.
Here a couple of next shots of captured and destroyed MiG-3s at the Bialystok area found via the net.. There were two additional airfields used by Russians near the Bialystok in 1941. One was at Topolany and the second one near Czarna Białostocka.