That sounds just like the "binary option" business which used to be run out of Israel. The Times of Israel blew that apart with "The Wolves of Tel Aviv" investigation series.[1] The binary option companies would hire new immigrants to Israel and put them in a call center to cold call and sell binary options sold by fake brokerages. The companies wanted people who spoke a foreign language so they could sell in that language. Scamming people outside Israel was legal in Israel at the time.
When, after years of scams, the State of Israel finally made that illegal, some of the binary options scammers moved into crypto. (Others moved to Bulgaria, where binary options were legal until a crackdown in 2021.) But the pattern is the same. Cold-contact, make friends, get people to invest in a fake brokerage, provide fake statements showing a win, refuse withdrawals.
[1] https://www.timesofisrael.com/the-wolves-of-tel-aviv-israels...