Threat Outbreak Alert: Fake Fax Message Notification Email Messages on January 27, 2014

2014-01-27T20:57:31
ID CISCO-THREAT-32585
Type ciscothreats
Reporter Cisco
Modified 2014-01-29T13:51:49

Description

Medium

Alert ID:

32585

First Published:

2014 January 27 20:57 GMT

Last Updated:

2014 January 29 13:51 GMT

Version:

2

Summary

  • Cisco Security has detected significant activity related to spam email messages that claim to contain a fax message notification for the recipient. The text in the email message attempts to convince the recipient to open a link to view the fax online. However, the link directs users to a malicious .zip file containing a malicious _.pi_f file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID8640 and RuleID8332KVR) may contain the following files:

> efax_6023994730.zip
efax_6023994730.pif
Plaint_Note_Document_ID6996.zip
Plaint_Note__Date_24_01_2014.exe

The efax_6023994730.pif file in the efax_6023994730.zip archive has a file size of 345,088 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xBFB97553583B3D60B88C05A242C9FC02

The Plaint_Note__Date_24_01_2014.exe file in the Plaint_Note_Document_ID6996.zip attachment has a file size of 84,838 bytes. The MD5 checksum is the following string: f8d98b50783639845c09d609d19d8198

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

> Subject: eFax message from 16023994730 - 1 page(s), Caller-ID: 602-399-4730

Message Body:

You have received a 1 page fax at 2014-01-27 05:45:20 CDT.
* The reference number for this fax is min1_did13-1329191075-6023994730-49.
View this fax online, on our website : hxxp://www.efax.com/fax/fax_view.aspx?fax_id=6023994730
Please visit www.eFax.com/en/efax/twa/page/help if you have any questions regarding this message or your service.
Thank you for using the eFax service!

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
    ---|---|---|---
    2 | Cisco Security has detected significant activity on January 27, 2014. | | 2014-January-29 13:51 GMT
    1 | Cisco Security has detected significant activity on January 27, 2014. | | 2014-January-27 20:57 GMT
    Show Less

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