I can't figure out how they know the job is related to the PERM program. I looked at a job posting and didn't see an indication, does Jobs.now read from filings with USCIS or DOL?
There are a few tells. The biggest one is that they require you to send in a paper resume to some random address. The other tell is that the salaries are often very under market for that region.
These jobs are being posted in places that no normal job applicant would look.