Threat Outbreak Alert: Fake Bank Debt Notification Email Messages on November 28, 2013

Medium

Alert ID:

31936

First Published:

2013 December 2 21:01 GMT

Version:

1

Summary

• Cisco Security has detected significant activity related to spam email messages that claim to contain a notification of debt 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 .exe file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID8059) may contain the following files:

> notification-Ulster_Bank_Ireland_Limited-13741.zip
REPORT-277152.exe

The REPORT-277152.exe file in the notification-Ulster_Bank_Ireland_Limited-13741.zip attachment has a file size of 94,212 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xD4B03A1057918564715405E445101019

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

> Subject:** FW: You have received a new debit(N13741)**

Message Body:

From: Ulster Bank Ireland Limited MAILER-DAEMON-N13741 [mailto:[email protected]]
Sent: 28 November 2013 08:07
To: C Roughley
Subject: You have received a new debit(N13741)
8 October 2013
This is an automatic generated message by the Ulster Bank Ireland Limited online payments Service.
The details of the payment are enclosed to the letter.
------------------------------
This message (including any attachments) is personal and confidential and may contain privileged material. If you have received this message in error, please notify the sender and remove it
(including any attachments) immediately. You must not copy, distribute, disclose or use any of the information in it or any attachments.

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		2013-December-02 21:01 GMT
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