Phishing Campaign Linked with “Dyre” Banking Malware

NCCIC / US-CERT

Overview

Since mid-October 2014, a phishing campaign has targeted a wide variety of recipients while employing the Dyre/Dyreza banking malware. Elements of this phishing campaign vary from target to target including senders, attachments, exploits, themes, and payload(s).[1][2] Although this campaign uses various tactics, the actor’s intent is to entice recipients into opening attachments and downloading malware.

Description

The Dyre banking malware specifically targets sensitive user account credentials. The malware has the ability to capture user login information and send the captured data to malicious actors.[3](link is external) Phishing emails used in this campaign often contain a weaponized PDF attachment which attempts to exploit vulnerabilities found in unpatched versions of Adobe Reader.[4](link is external)[5](link is external) After successful exploitation, a user’s system will download Dyre banking malware. All of the major anti-virus vendors have successfully detected this malware prior to the release of this alert.[6](link is external)

Please note, the below listing of indicators does not represent all characteristics and indicators for this campaign.

Phishing Email Characteristics:

  • Subject: “Unpaid invoic” (Spelling errors in the subject line are a characteristic of this campaign)
  • Attachment: Invoice621785.pdf

System Level Indicators (upon successful exploitation):

  • Copies itself under C:\Windows\[RandomName].exe
  • Created a Service named “Google Update Service” by setting the following registry keys:
    • HKLM\SYSTEM\CurrentControlSet\Services\googleupdate\ImagePath: “C:\WINDOWS\pfdOSwYjERDHrdV.exe”
    • HKLM\SYSTEM\CurrentControlSet\Services\googleupdate\DisplayName: “Google Update Service”

Impact

A system infected with Dyre banking malware will attempt to harvest credentials for online services, including banking services.

Solution

Users and administrators are recommended to take the following preventive measures to protect their computer networks from phishing campaigns:

US-CERT collects phishing email messages and website locations so that we can help people avoid becoming victims of phishing scams.

You can report phishing to us by sending email to phishing-report@us-cert.gov(link sends e-mail).

References

Revisions

  • October 27, 2014: Initial Release

 

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About Vic Levinson
Telecommunications and IT professional with over 20 years experience in Business Telecommunications. Specializing in voice over IP (VoIP) for business: hosted VoIP, business VoIP phone systems, SIP providers, carriers, T1's - the works. Founded Prime Telecommunications in 1993 and providing business communications solutions. Cloud Applications- everything from hosted network security, hosted Disaster Recovery, hosted printer management, data centers and colocation solutions for businesses.

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