Threat Outbreak Alert: Fake Electronic Billing Statement E-mail Messages on May 3, 2013
IntelliShield: Threat Outbreak Alert
2013 May 02 15:32 GMT
2013 May 03 17:51 GMT
Cisco Security has detected significant activity on May 3, 2013.
Cisco Security has detected significant activity related to spam e-mail messages that claim to contain an electronic merchant billing statement for the recipient. The text in the e-mail 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.
E-mail messages that are related to this threat (RuleID5950 and RuleID5950KVR) may contain any of the following files:
Statement ID 758-456-324-562-456.zip Statement ID 758-456-324-562-456.exe Statement ID 758-456-324-562-457.zip
Statement ID 758-456-324-562-457.exe
The Statement ID 758-456-324-562-456.exe file in the Statement ID 758-456-324-562-456.zip attachment has a file size of 244,736 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xBF0F2C333BDA15EAB032F60B495A24F8
The Statement ID 758-456-324-562-457.exe file in the Statement ID 758-456-324-562-457.zip attachment has a file size of 243,200 bytes. The MD5 checksum is the following string: 0x75A666F81847CCF7656790162E6A666A
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Merchant Statement
Enclosed is your Citibank Paymentech electronic Merchant Billing Statement. If you need assistance, please contact your Account Executive or call Merchant Services at the telephone number listed on your statement. PLEASE DO NOT RESPOND BY USING REPLY. This email is sent from an unmonitored email address, and your response will not be received by Citibank Paymentech. Citibank Paymentech will not be responsible for any liabilities that may result from or relate to any failure or delay caused by Citibank Paymentech's or the Merchant's email service or otherwise. Citibank Paymentech recommends that Merchants continue to monitor their statement information regularly. ---------- Learn more about Citibank Paymentech Solutions, LLC payment processing services at www.citibank.com. ---------- THIS MESSAGE IS CONFIDENTIAL. This e-mail message and any attachments are proprietary and confidential information intended only for the use of the recipient(s) named above. If you are not the int
ended recipient, you may not print, distribute, or copy this message or any attachments. If you have received this communication in error, please notify the sender by return e-mail and delete this message and any attachments from your computer.
Cisco Security analysts examine real-world e-mail 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 e-mail 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. E-mail 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 e-mail and hostile web URLs from being passed to the end user.
The security vulnerability applies to the following combinations of products.
Threat Outbreak Alert
Original Release Base
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