I have seen tons of these scams through the years. Even today I get those filtered right to my spam box. At times some of the fake job offers claiming they have a job opportunity for you are only trying to collect information to add you to their database and usually puts you on some other list of spam possibilities.
Honestly I can not stand those message claiming to be a job offer when they are just a hoax or scam wanting your personally identifiable information. They have been trying to figure out why there are so many database breaches and compromises, that is one of the primary reasons. The information is collected and then eventually utilized for purposes of such.