Threat Outbreak Alert: Fake Canceled Electronic Payment Notification Email Messages on July 12, 2013

Medium

Alert ID:

30071

First Published:

2013 July 15 12:46 GMT

Version:

1

Summary

• Cisco Security has detected significant activity related to spam email messages that claim to contain a payment cancellation 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 .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 (RuleID6563) may contain the following files:

> _NACHA_05312013_548112487094.zip
ACH_05312013_Reject.exe
_

The ACH_05312013_Reject.exe file in the NACHA_05312013_548112487094.zip attachment has a file size of 143,360 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x47EF9AF3BE7E188389EB97562C68F5DD

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

> Message Body:

Ach payment canceled Transaction ID: #548112487094
The ACH transaction, recently initiated from your checking account (by you or any other person), was canceled by the other financial institution.
Transaction Status: Rejected
Transaction ID: #548112487094
Amount: $ 21,402.97
To view more details for this transaction , please check the attached file .
NACHA works to maintain the privacy of any personally identifiable information (name, mailing address, e-mail address, etc.) that may be collected though our Web site. This Web site has security measures in place; however, NACHA does not represent, warrant or guarantee that personal information will be protected against unauthorized access, loss, misuse or alterations. Similarly, NACHA disclaims liability for personal information submitted through this Web site. Users are hereby advised that they submit such personal information at their own risk.
Thank you,
13450 Sunrise Valley Drive
Suite 100 Herndon
VA 20171
2013 NACHA - The Electronic Payments Association
CONFIDENTIALITY NOTICE:
This electronic mail transmission and any attached files contain information intended for the exclusive use of the individual or entity to whom it is addressed and may contain information belonging to the sender (Nacha , Inc.) that is proprietary, privileged, confidential and/or protected from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any viewing, copying, disclosure or distributions of this electronic message are violations of federal law. Please notify the sender of any unintended recipients and delete the original message without making any copies. Thank You
13450 Sunrise Valley Drive, Suite 100 Herndon, VA 20171 (703) 561-1100
2013 NACHA - The Electronic Payments Association

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-July-15 12:46 GMT
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