Date: Thu, 7 Nov 2013 15:58:15 +0100 [09:58:15 EST]
From: Microsoft Outlook [firstname.lastname@example.org]
Subject: You received a voice mail
You received a voice mail : N_58Q-ILM-94XZ.WAV (182 KB)
This e-mail contains a voice message.
Double click on the link to listen the message.
Sent by Microsoft Exchange Server
Attached is a zip file in the format Voice_Mail_recipientname.zip which in turn contains a malicious file Voice_Mail.exe which has an icon to make it look like an audio file. VirusTotal detection for that is 7/47 and automated analysis tools   show an attempted connection to amazingfloorrestoration.com on 18.104.22.168 (NewMedia Express, Singapore). Note that sometimes other sites on these servers have also been compromised, so if you see any odd traffic to this IP then it could well be malicious.