Cisco Security Intelligence Operations has detected significant activity related to spam e-mail messages that claim to contain a package delivery failure notification for the recipient. The text in the e-mail message attempts to convince the recipient to open a link to view delivery status details or to arrange for a redelivery of the package. However, the link contains a malicious .pif file that, when executed, attempts to infect the system with malicious code.
E-mail messages that are related to this threat (RuleID4134) may contain the following file:
The pdf_trk_invoice.pif file has a file size of 43,520 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x0B1914E35073B47CB36178FD0D010B94
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Urgent: Scheduled package delivery failed!
We attempted to deliver your item at 08:45 am on May 07th, 2012.
The delivery attempt failed because nobody was present at the shipping address, so this notification has been automatically sent.
You may arrange redelivery by visiting the link below or pick up the item at the Canada Post Office indicated on the receipt.
If the package is not scheduled for redelivery or picked up within 48 hours, it will be returned to the sender.
Label/Receipt Number: LP289603226CA
Expected Delivery Date: May 07th, 2012
Class: Package Services
Service(s): Delivery Confirmation
Status: eNotification sent
To download the shipping receipt, in PDF format, visit:
To check on the delivery status of your mailing or arrange redelivery please visit the following URL:
2012 Canada Post Corporation.
*** This is an automatically generated email, please do not reply ***
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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