Threat Outbreak Alert: Fake Invoice Notification Email Messages on April 4, 2014

2014-04-05T05:52:11
ID CISCO-THREAT-33650
Type ciscothreats
Reporter Cisco
Modified 2014-04-05T05:52:11

Description

Medium

Alert ID:

33650

First Published:

2014 April 5 05:52 GMT

Version:

1

Summary

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

Email messages that are related to this threat (RuleID9490) may contain the following files:

> _Revised-PI-April2014ez.rar
Revised-PI-April2014ez.exe _

The_ Revised-PI-April2014ez.exe_ file in the _Revised-PI-April2014ez.rar _ attachment has a file size of 616,992 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x9E86051CB8EAE553693E18E1441637A0

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

> Subject: "URGENT! Revised April PI"

Message Body:

> Goodday,
I'm sorry for getting back to you very late, I was on holiday and only
came back to the office today.
As a matter of fact, we have evaluated your PI you sent to us previously.
kindly see the attached Revised Invoice and check if you can ship
before the end of April 2014, as we have many demanding customers
on queue.
Get back to me as soon as possible.

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-April-05 05:52 GMT
    Show Less

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