Cellar.org hacked or compromised in some way?

[BigV]

I don't know about the site being hacked.

However, it is trivial to spoof the sending name and sending domain on a piece of email. If you have not suffered any ill consequences from clicking on the link, you're probably ok.

Standard procedure in cases like this would indicate that you should change your email password immediately, at a minimum. You were prudent to run the malware scan. Depending on how seriously you take this stuff.