Different countries, different regulations, I don't know how far that goes. But if your friend just wants to avoid being tracked on his behalf, shouldn't that be possible by using your identity to register an account on a legal CEX there, then liquidating directly through your bank account?
There still a problem on how can he use the money since he needs bank account to received and use it which the government can still track his money. @Die_empty suggestion is the best for playing safe since a sudden increase on his family finances will raise an alarm to the government since he has scholarship.
Maybe ask someone trusted but non-family related to received the funds and use him as proxy for the business and gift the money for the house repair in exchange for some fees.