Question: accidentally clicked attachment in hotmail
So I got a phishing email with an attachment from "apple" and I knew it was a phishing email so I went to forward it to apple's phishing report email. I was on my MacBook pro in safari in hotmail. I accidentally clicked the attachment when I was forwarding the email and a picture of an ad for a game app came up in the left side next to the email with a "download" option at the top left. So was that just a preview? I changed my email password bc i didn't know what else to do. Nothing shows up in my mac's downloads or anything. Should I do anything else? Is my mac or anything else infected? I also cleared my safari cache.
Thanks in advance!
MacBook Pro with Retina display, macOS Sierra (10.12.6)