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.
I find it entertaining that even as part of a Russian hacking gang, the real threat is the Russian tax authorities. Regardless of how you got the money, need to pay the taxes.
Schukin isn't a very common last name (definitely not Ivanov-tier). The first name, the patronymic (his father is Maksim) and the last name all match, as well as the city (the article says he lives in Krasnodar). In fact, this Krasnodar-based entrepreneur is the only person that shows up in the search at all for "Daniil Maksimovich Schukin". Not to say the business was registered right when the ransoms started (2019). Too many coincidences if it's just a namesake.