It is already fishy when someone tries to approach me randomly with that kind of message. This become a common thing from the scammers that they'll enticed you with some amounts of money that you might not be able to decline.

And if someone asks me that way, no way. I'll just ignore it and won't even reply to them because the more that you engage to them.

They're not going to stop you bothering and they see you as a good prey that might fall for their trap. So, it's not with Telegram only but also in other messaging platforms.