Threat Outbreak Alert: Fake Fund Transfer Notification Email Messages on December 5, 2013

2013-12-06T15:33:35
ID CISCO-THREAT-32058
Type ciscothreats
Reporter Cisco
Modified 2013-12-06T15:33:35

Description

Medium

Alert ID:

32058

First Published:

2013 December 6 15:33 GMT

Version:

1

Summary

  • Cisco Security has detected significant activity related to Portuguese-language spam email messages that claim to contain payment transfer details for the recipient. The text in the e-mail message attempts to convince the recipient to follow a link and view the details. However, the link directs the user to a malicious .zip file containing a .cpl file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID8128) may contain the following files:

> _Nfe_Danfe_SP_COMH4589YUI.pdf.zip
Nfe_Danfe_SP_COMH4589YUI.pdf.cpl _

The Nfe_Danfe_SP_COMH4589YUI.pdf.cpl file in the Nfe_Danfe_SP_COMH4589YUI.pdf.zip attachment has a file size of 866,304 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x1DC32460E48557526F4A6EBDA7E36FDD

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

> Subject: Nfed - 707760595

Message Body:

Prezado cliente,
Segue em anexo a NF-e 272951 emitida.
Para visualizar a sua NF-e basta acessar o link abaixo e informar a chave deacesso:
Link: hxxp://www.nfe.fazenda.gov.br/portal/consulta.aspx?tipoConsulta=completa&tipoConteudo=XbSeqxE8pl8=
Chave de Acesso: 497415657804777604000286550010003647885023630311
Obrigado pela sua preferencia!
Nenhumvírus encontrado nessa mensagem.
Verificado por AVG - www.avgbrasil.com.br
Versão: 2013.0.3426 / Banco de dados de vírus: 3629/6848 - Data de Lançamento:[Date_short]

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-December-06 15:33 GMT
    Show Less

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