Seems that the downloaded official installer file bitdefender_isecurity.exe (SHA256 = 786f7b45a2c2cd064ca4040b98bafa82d96c6912139f54b4369825e3a6ebc180) has been set to help promote the Bitdefender Total Security 2016 instead.
Deepviz analysis
result: #malware
19 matched rules:
Contains anti-debugging code
Contains cryptographic functionality
Add an URL inside Windows Registry Keys
Share your test later? Get the online setup file@ http://bitdefender.com/media/html/trial-download-overlays-2016/is.html?force_country=en
OP & more info is here.