Threat Outbreak Alert: Fake Voicemail Message Delivery Email Messages on May 21, 2014

Medium

Alert ID:

34317

First Published:

2014 May 21 14:13 GMT

Version:

1

Summary

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

Email messages that are related to this threat (RuleID10066) may contain the following files:

> VideoMensagem028601206.zip
VideoMensagem028601206.cpl

The VideoMensagem028601206.cpl file in the VideoMensagem028601206.zip attachment has a file size of 509,440 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xE3CDBB2CC635B5989D51C1D58D7C4F61

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

> Message Body:

TIM voice message recebida.
From: Number ID 81406778 TIM Brasil
Usuario ID: 81406778-TIM lhe envio uma Video mensagem
TIM voice message visualizar.
Authentication codec: Q409E3IMC207DL6YKB3IM397GL60KEHQ6U9E4OM498DHE45SW5OB397AGQ60
No virus found in this incoming message.
Checked by TIM ORG
Version: 7.5.476 / Virus Database: 269.9.6/866 - Release 38AJ60KE5OC25FGW6YKQWIPB29

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
Cisco SenderBase Security Network

Revision History

* Version	Description	Section	Date
1	Initial Release		2014-May-21 14:13 GMT
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