This sounds weird, but i really need help

[TheWanderkk]

There's this phone number that keeps sending a lot of brazilian people messages about job offers. Those offers are clearly fake, but there is an email linked to the number. What's drawn my attention to it is the fact that all of the emails end in "Yanmian-mo.com". I'd like to know if anyone who lives or has already lived in china knows anything about it. Here's an example of the messages people are getting (they all are written in portuguese with horrendous gramatic, which makes me think that a foreigner is wirting it).