Cisco Security Intelligence Operations has detected significant activity related to Italian-language spam e-mail messages that claim to contain the answer to a profile inquiry on a particular website. The text in the message attempts to convince the recipient to follow a link for details. However, the link directs the recipient to a .zip file with a malicious .exe file that, when executed, attempts to infect the system with malicious code.
E-mail messages that are related to this threat (RuleID4239 and RuleID4239KVR) may contain the following files:
The Messaggio.Pdf_________.exe file in the Messaggio.zip attachment has a file size of 370,656 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x53BC4ED3E28DD5469DFFAEF27AE13485
The Notare.Pdf_____.exe file in the Notare.zip attachment has a file size of 398,304 bytes. The MD5 checksum is the following string: 0xC3D916280A17EA6806AC83E6E7D18439
A variant of the Messaggio.Pdf_____.exe file in the Messaggio.zip attachment has a file size of 289,281 bytes. The MD5 checksum is the following string: 0x622E5E9F148B22B8CCCC2894FD8DCDFD
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Fattura N 512288.
La risposta alla tua domanda riguardo al profilo sul nostro sito web 01.06.2012.
Link Statistiche ==>
Cisco Security Intelligence Operations 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 IronPort systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.
Cisco IronPort Virus Outbreak Filters 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 IronPort web security appliances will not be impacted by these attacks. Cisco IronPort appliances are automatically updated to prevent both spam e-mail and hostile web URLs from being passed to the end user.
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