A friend of mine got two such "fake" candidates for a coding interview. His experience reminded me of those "Nigerian Prince" emails from 20 years ago. These two gentlemen had western names (like "Brandon Smith") but Asian features and a tenuous grasp of spoken English; even though they claimed to have undergrad degrees from US universities. And he could tell they were looking at another screen to copy code from. After just a few minutes he realized what was going on, but continued the interview just to get the experience.
Nothing about that sound fake
Frankly sounds like many "real" candidates I've interviewed.
The tenuous grasp of spoken English despite a degree taught in English is also not unusual.
Setting aside the fraud for a moment (which is an insurmountable barrier to employeeing them).
To some extent I'd be satisfied if they actually had a degree and were productive. They obviously need good enough receptive and written English to work.
Especially if they are earning 5k per year as the title suggests.