Sophisticated Phishing Campaign Attempts to Bypass SEGs

Stu Sjouwerman | Dec 13, 2024

Phishing for FedsA widespread phishing campaign is attempting to steal credentials from employees working at dozens of organizations around the world, according to researchers at Group-IB. 

The campaign has targeted organizations across twelve industries, including government, aerospace, finance, energy, telecommunications, and fashion.

“The campaign begins with phishing links crafted to mimic trusted platforms commonly used for document management and electronic signatures, such as DocuSign,” Group-IB says.

“Cybercriminals replicate the appearance of legitimate DocuSign emails, complete with branding, logos, and professional formatting. The email might have a subject line like “Complete with DocuSign modified contract” and prompts the recipient to click on a link to view and sign a document, creating the illusion of a routine and trustworthy request.”

The attackers are using legitimate domains to deliver their malicious links, increasing the likelihood that they won’t be detected by Secure Email Gateways (SEGs).

“In a more sophisticated approach, threat actors leverage well-known and trusted domains, such as Adobe.com, to deliver their phishing links,” the researchers write. “One of the primary reasons threat actors use trusted domains is to bypass SEGs and spam filters, which are designed to block suspicious or unknown domains. However, SEGs are less likely to flag URLs that belong to reputable platforms because these domains have established a history of trustworthiness.”

Notably, this campaign automatically extracts the domain and company name from the targeted victim’s email and uses this information to “dynamically update elements on the webpage, such as the favicon, logos, and titles, creating a customized phishing page that mimics the victim’s company for enhanced credibility and deception.”

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Group-IB has the story.

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