You can find all the information about the account verification right before making a deposit.

In case of Yandex.Money deposit:
-Passport / ID card
A photo of your passport / ID card

-A photo of your payment system account
Your face with a computer screen in the background showing your payment system account open. The opened page must display your name and surname and/or a transaction to Crex24.

This is a standard KYC policy: https://crex24.com/aml
And we also have to be sure, this Yandex.Money account is yours.