Is greetrader legit?

I was introduced to greetrader.com by my colleague and she showed me her trading balance and her last withdrawal. I was skeptical at first but was convinced by the balance and withdrawal so 1 risked first with $100. I swapped and got $130, I swapped again and got $170 and withdrew it. I received the money in my coinbase wallet and that is when I believed it's true. Today I tried with $200 and got $237, and the next swap I withdrew $341. Has anvone else heard of the site before or dc they want me to deposit a large sum