Threat Outbreak Alert: Fake Malicious Attachment Notification Email Messages on February 24, 2014

2014-02-25T18:37:30
ID CISCO-THREAT-33000
Type ciscothreats
Reporter Cisco
Modified 2014-02-25T18:37:30

Description

Medium

Alert ID:

33000

First Published:

2014 February 25 18:37 GMT

Version:

1

Summary

  • Cisco Security has detected significant activity related to Spanish-language spam email messages that claim to contain an attached certificate for the recipient. The text in the email 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.

Email messages that are related to this threat (RuleID8960) may contain the following files:

> Certificado y Calificacion Tributaria.zip
Certificado y Calificacion Tributaria descargaDian-guiaDiligeciamientoVirtual-290509pdf.exe

The Certificado y Calificacion Tributaria descargaDian-guiaDiligeciamientoVirtual-290509pdf.exe file in the Certificado y Calificacion Tributaria.zip attachment has a file size of 685,460 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x2DF4BD1759A576213C137E79F875BB54

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

> Message Body:

La Direccion de Impuestos y Aduanas Nacionales DIAN, informa que de conformidad con la certificacion
emitida por la subdireccion de gestion de Tecnologia de la informacion y telecomunicaciones, ha operado
la contingencia de que trata el articulo 579-2 del Estatuto Tributario a partir de hoy 18 de
febrero de 2014 y hasta el restablecimiento de los servicios informaticos Electronicos (SIE).
por lo anterior, se promueve la descarga del indicador personalizado accediendo ala herramienta
Adjunta y suministrando su RUT y/o NIT.
la informacion consolidada puede recojerla en el archivo adjunto.
Le agradecemos reenviar esta herramienta a los contactos que usted considere pueden o no necesitar el contenido emitido
por nuestra organizacion desde sus bases de datos.
Agradecimientos.
Dian un compromiso que no podemos evadir.
We have made the payment as required kindly check payment details to know we made the payment as required.
Please check the attachment regarding the t.t copy.
Please note, below is payment detail :
Last Inv. : USD 32,000.00
We already t.t the USD 32,000.00 for you at 26.2.2013.
Please Run download to view the copy & sign this statement then confirm back by e-mail.
Thank you.
Regards
Huong ( Ms. )

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 | | 2014-February-25 18:37 GMT
    Show Less

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