Definitely not an Adobe site and most likely malicious. Some possibilities (not a complete list):
- malicious ad on the site (that I didn't get)
- your system (computer, modem, router) has been compromised in some other fashion
- proxy server settings modified without your knowledge
- DNS server redirect
- something else
I recommend running a full system scan (rootkit, virus, trojan, malware, adware, etc) on your system.
In the mean time, I'll forward the information to the fraud team. In the future feel free to drop an email (with details) to phishing@adobe.com or fraud@adobe.com