We've been seeing a run of malware distributed via spammed e-mails in the last couple days.
The e-mail messages and the malware aren't particularly new. The message is fake and pretends to be related to a delivery service; attached to it is a disguised ZIP file containing a trojan-downloader.
If the ZIP file is run, what a user would see is:
"Hmm, I have an incoming parcel from DHL. I'd better check the attached document for the tracking number. Uh wait… or was it from FedEx?"