Need to help check this file, it show have a virus only on Avast

Hello Avast.

I found a problem about PDF file show have a virus (PDF:PhishingX-gen [Phish]) but when i scan with other Anti virus it not show file have virus (Only Avast and AVG found show virus when i check on virustotal)

Is this false positive, or this file have a real virus?

You can report as false positive to Avast using:Choose Your Sample Submission Type | Avast