Whatsapp is a malicious program and should be immediately removed from your phone, after which a virus scan should be performed. Google whatsapp scams and see how many reports there are.
Job Scam:
How can you tell if this job offer is a scam?
1. All communication is by e mail, text, or instant message, very rarely by phone conversation.
2. There is no personal interview, or sometimes no interview at all.
3. It is a work at home position many times because the office in your area is not built, rented, or established yet, or it is a pet sitting or home care job usually for a disabled child.
4. You need a bank account to receive and deposit checks (money laundering), or you need to receive packages and resend them (illegal contraband).
5. They will send you a check for an amount well over what you should be getting and tell you that you need to deposit the check and send the money through some way such as Western Union or Greendot money card to pay for something they should be paying for themselves. Take the check and the envelope it came in to the post office and have them forward it to the postal inspectors.
6. The pay and benefits are way beyond anything you would normally earn.