An email about Walmart.com Returns with the subject of Confirmation from FedEx Email/Online Label pretending to come from FedEx Email/Online Label NoReply <firstname.lastname@example.org> with a malicious word doc is another one from the current bot runs which try to download various Trojans and password stealers especially banking credential. They are using email addresses and subjects that will entice a user to read the email and open the attachment.
The email looks like:
This email has what appears to be a genuine word doc or Excel XLS spreadsheet attached which contains a macro script virus. Modern versions of Microsoft office, that is Office 2010 and 2013 and Office 365 have Macros disabled by default, UNLESS you or your company have enabled them.