Hi there, [name redacted] ([email redacted]) invited you to view the file "Tri-North - #ProposalProject ECN.doc" on Dropbox. View file [URL redacted] Enjoy! The Dropbox team Ryan and others will be able to see when you view this file. Other files shared with you through Dropbox may also show this info. Learn more [URL redacted] in our help center. Report to Dropbox [URL redacted] © 2019 Dropbox

Annotation

This email is a legitimate email generated by a service provider (Dropbox). Since the email is valid it can be easily dismissed as legitimate, although in this case the downloaded file contained malware that would infect a computer. Attackers use valid services such as Dropbox to spread harmful software. Be careful when downloading files from the internet and be extra cautious if you were not expecting an email or attachment to be sent to you from a third party.