The USSR had never worked with Germany beyond that of the rest of the world and worked far less than countries like the UK. To claim otherwise is ridiculous.
On 23 August 1939 the Soviet Union signed a non-aggression pact with Germany which included a secret protocol that divided Eastern Europe into German and Soviet "spheres of influence", anticipating potential "territorial and political rearrangements" of these countries.
They planned with the Nazis to basically divide up Europe.
Finland was allied with the Nazis and was the aggressor agaisnt the USSR.
You mean the same Nazis that the USSR had a non-aggression pact with? The one that wouldn't get broken until 1941, a year after the war with Finland ended?
Also:
The Soviets made several demands, including that Finland cede substantial border territories in exchange for land elsewhere, claiming security reasons – primarily the protection of Leningrad, 32 km (20 mi) from the Finnish border. When Finland refused, the Soviets invaded.
Ummm...pretty sure this makes Russia the aggressor, not Finland.