It's better to be careful when working abroad. Many black intermediaries cheat people by virtue of the urgent psychology of migrant workers.
I don't know about this, but I think you should talk to them about the salary, work place and work content after going abroad first. It's better to have a contract or something, otherwise what should I do if I go and get sent back? What if you are not allowed to work there? It depends on whether that company is qualified! Be sure to find a regular company! Otherwise, it's not as simple as wasting a few dollars.