Look at their bad grammar in the full conversation though, this was the last dead giveaway.
"We're mailing you a check, now please send the money to someone else" is always a red flag. In the rare cases someone doing this isn't scamming you, they're probably using you to avoid taxes or breach spending guidelines or something else unfavourable to you instead...
"Do you track the check" "I will send you later" "A IT director Lead from the company..." "...by purchasing the home office equipments..." "Immediately the funds are available, you will be directed..."
That's not even mentioning the smorgasbord of run-on sentences, weird capitalizations, etc. Yes, there's a lot of non American English. But it's presented as coming from an American given that the job listing is all US and that name is an American (or at least Anglo) name.
“All hotel and booking has been made and trips has been plnanned”
“Is this how you want to be difficult”
“I will send you later”
Where is any of that considered correct English? If my manager sent any of those message I’d be worried about a stroke.
The scam is that they are secretly the vendor and they never send you the computer equipment that you buy with your own money. The money from the check they sent gets taken back by the bank because it's fake.