Threat Outbreak Alert: Fake Bank Documents Email Messages on April 1, 2014

2014-04-01T20:56:01
ID CISCO-THREAT-33610
Type ciscothreats
Reporter Cisco
Modified 2014-04-01T20:56:01

Description

Medium

Alert ID:

33610

First Published:

2014 April 1 20:56 GMT

Version:

1

Summary

  • Cisco Security has detected significant activity related to spam email messages that claim to contain bank documents for the recipient. The text in the email message attempts to convince the recipient to open the attachment to view the attached files. However, the .zip attachment contains a malicious .scr file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID9453 and RuleID9453KVR) may contain the following files:

> WellsFargo_Docs_042014.zip
WellsFargo_Docs_042014.scr
Payroll.zip
Payroll_0401.scr

The WellsFargo_Docs_042014.scr file in the WellsFargo_Docs_042014.zip attachment has a file size of 21,504 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xEEC860534B412059217DE2914F9CE809

The Payroll_0401.scr file in the Payroll.zip attachment has a file size of 21,504 bytes. The MD5 checksum is the following string: 0x8FFAD2FF144FA504947B2FED62B9B540

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

> Subject: Documents - WellsFargo

Message Body:

Please review attached files.
Cole_Luna
Wells Fargo Advisors
817-906-8004 office
817-531-9929 cell
Cole_Luna@wellsfargo.com
Investments in securities and insurance products are:
NOT FDIC-INSURED/NO BANK-GUARANTEES/MAY LOSE VALUE
Wells Fargo Advisors, LLC is a nonbank affiliate of Wells Fargo & Company, Member FINRA/SIPC. 1 North Jefferson, St. Louis, MO 63103
CONFIDENTIAL NOTICE: The contents of this message, including any attachments, are confidential and are intended solely for the use of the person or entity to whom the message was addressed. If you are not the intended recipient of this message, please be advised that any dissemination, distribution, or use of the contents of this message is strictly prohibited. If you received this message in error, please notify the sender. Please also permanently delete all copies of the original message and any attached documentation. Thank you.

Or

> Subject: Payment Overdue - Please respond

Message Body:

Please find attached payroll reports for the past months. Remit the new payment by 04/08/2014 as outlines under our payment agreement.
Sincerely,
Ellis Myrick
This e-mail has been sent from an automated system. PLEASE DO NOT REPLY.
CONFIDENTIAL NOTICE: The contents of this message, including any attachments, are confidential and are intended solely for the use of the person or entity to whom the message was addressed. If you are not the intended recipient of this message, please be advised that any dissemination, distribution, or use of the contents of this message is strictly prohibited. If you received this message in error, please notify the sender. Please also permanently delete all copies of the original message and any attached documentation. Thank you.

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-April-01 20:56 GMT
    Show Less

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