To make this phishing email seem more believable, scammers disguise it as an automated email from Dropbox. Therefore, do not trust this scam email and, more importantly, do not enter information on the deceptive website. This document can be opened through a link within a phishing email.
They try to deceive people through a link within a PDF document, which is downloaded through a Dropbox shared link contained within another PDF document. Scammers behind this phishing scam attempt to trick unsuspecting recipients into providing their Microsoft account credentials.