Inboxes are currently being hit by emails claiming to contain an attached voice message. The attachments do not contain a voice message. Instead, they contain malware.
The versions I have seen so far have the subject line ‘Voice Message Attached from 08439801260’.
The body of the email contains a date and time and instructs you to click an attachment to listen to your voice message.
The attachment is designed to trick you into believing that it contains an innocent .wav audio file when it actually links to a malicious .exe file.
If you open the attachment, it may install malware designed to steal account passwords and other information from your computer. It may also download and install other types of malware such as ransomware.
Details, such as the phone number specified in the subject line and the time and date information, may vary in different versions of the malware emails.
Example
Subject: Voice Message Attached from 08439801260
Time: Jul 28, 2015 3:08:34 PM
Click attachment to listen to Voice Message
Original Source : https://www.hoax-slayer.net/voice-message-attached-malware-emails/