Threat Outbreak Alert: Fake Invoice Receipt Delivery Email Messages on September 24, 2013
IntelliShield: Threat Outbreak Alert
2013 September 25 15:09 GMT
2013 September 25 15:09 GMT
Cisco Security has detected significant activity on September 24, 2013.
Cisco Security has detected significant activity related to Spanish-language spam email messages that claim to contain an invoice receipt delivery link for the recipient. The text in the email message attempts to convince the recipient to open the link and view the details. However, the link contains a malicious .cpl file that, when executed, attempts to infect the system with malicious code.
Email messages that are related to this threat (RuleID7197) may contain the following files:
The Doc.xml.Pdf.598.458.154.125.cpl file in the Doc.xml.Pdf.598.458.154.125.zip attachment has a file size of 255,488 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xAD40B1B34FA819C69783D95F6FAA9C1E
The following text is a sample of the email message that is associated with this threat outbreak:
Subject: Nota Fiscal Eletrônica de Serviços Nª 67432.terça-feira, 24 de setembro de 2013
Este arquivo deve ser armazenado.
Recibo NF.287237702-2013 ( 232 kb )
Segue em anexo a cópia da NOTA FISCAL em PDF onde está a relação dos pedidos e demais detalhes do pagamento.
Informamos que o valor foi debitado com sucesso!
Qualquer dúvida em relação aos pedidos entrar em contato conosco que explicaremos!
CRUZ ALTA LTDA agradece a preferência!
ROD FERNÃNDO DIAS, S/N, S/N - KM 813
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.
The security vulnerability applies to the following combinations of products.
Threat Outbreak Alert
Original Release Base
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.