Found his record in Russia's official company registry. This is what he officially does as an entepreneur:

  56.10 — Restaurant activities and food delivery services

  47.23 — Retail sale of fish, crustaceans, and mollusks in specialized stores

  47.25.12 — Retail sale of beer in specialized stores

  47.25.2 — Retail sale of soft drinks in specialized stores

  47.29.39 — Retail sale of other food products in specialized stores, not included in other groups

  68.20 — Lease and management of own or leased real estate

Money is reinvested into selling beer and fish :) Interestingly, he registered all that in 2019, just when the ransoms started.