Threat Outbreak Alert: Fake Voicemail Message Delivery Email Messages on May 7, 2014

2014-05-07T19:08:33
ID CISCO-THREAT-34154
Type ciscothreats
Reporter Cisco
Modified 2014-05-07T19:08:33

Description

Medium

Alert ID:

34154

First Published:

2014 May 7 19:08 GMT

Version:

1

Summary

  • Cisco Security has detected significant activity related to spam email messages that claim to contain a voicemail message for the recipient. The text in the email message attempts to convince the recipient to open the attachment to listen to the message. However, the .zip attachment contains a malicious .scr file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID9870) may contain the following files:

> VoicemailMessage.zip
voicemail347-573-5702.scr

The voicemail347-573-5702.scr file in the VoicemailMessage.zip attachment has a file size of 18,432 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x6A3DB8016A472195AF4A069138DFDD51

The following text is a sample of the email message that is associated with this threat outbreak:

> Message Body:

New Voicemail Message
You have been left at 1:01 long message (number 1) in mailbox from "Sigma Pharmaceuticals Pharmaceuticals" 07558212531, on Tuesday, May 06, 2014 at 07:29:08 GMT
The voicemail message has been attached to this email - which you can play on most computers.
Please do not reply to this message. This is an automated message which comes from an unattended mailbox.
This information contained within this e-mail is confidential to, and is for the exclusive use of the addressee(s). If you are not the addressee, then any distribution, copying or use of this e-mail is prohibited. If received in error, please advise the sender and delete/destroy it immediately. We accept no liability for any loss or damage suffered by any person arising from use of this e-mail.

Cisco Security analysts examine real-world email traffic data that is collected from over 100,000 contributing organizations worldwide. This data helps provide a range of information about and analysis of global email security threats and trends. Cisco will continue to monitor this threat and automatically adapt systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.

Cisco security appliances protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. Email that is managed by Cisco and end users who are protected by Cisco Web Security Appliances will not be impacted by these attacks. Cisco security appliances are automatically updated to prevent both spam email and hostile web URLs from being passed to the end user.

Related Links
Cisco Security
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Revision History

  • Version | Description | Section | Date
    ---|---|---|---
    1 | Initial Release | | 2014-May-07 19:08 GMT
    Show Less

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