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New Phishing Scam Targets Amazon Prime Subscribers

 


A new cyber attack is putting Amazon Prime subscribers at risk. Hackers are sending malicious emails warning users that their Prime membership is about to expire. These emails contain attachments with dangerous links that redirect users to fake websites designed to steal personal and financial information. Security experts warn that this is the latest example of cybercriminals using PDFs for phishing scams, exploiting the trust people place in these file types.

How the Scam Works

Researchers from Palo Alto's Unit 42 have identified this new scam, which relies on deceptive emails that appear to be from Amazon. The emails claim that the user’s Prime membership is expiring soon, urging them to take immediate action. Attached to the email is a PDF file containing a link that redirects users through multiple sites before landing on a fake login page. This page is designed to capture the user’s credentials, including passwords and credit card information.

The phishing websites are meticulously crafted to resemble Amazon’s official login page, making it difficult for users to distinguish them from the real site. Since June 2024, attackers have registered over 1,000 fake domains that closely mimic Amazon’s official domain, further complicating detection.

This type of attack is particularly dangerous because it exploits the perception that PDF files are safe. Hackers use this trust to bypass email filters and deliver malicious content. Javvad Malik, a security advocate at KnowBe4, warns that opening unexpected email attachments is risky. Many users fail to verify the sender’s email address before clicking on links, making them easy targets for cybercriminals.

Dray Agha, senior security manager at Huntress, explains that phishing techniques are constantly evolving. Cybercriminals are now using redirection techniques within PDF files to evade traditional security measures, making even cautious users vulnerable to these scams.

How to Protect Yourself

While Amazon is actively working to shut down these fraudulent websites, new ones continue to emerge. To stay safe, experts recommend the following steps:

  1. Avoid Opening Unexpected Attachments: Even if the email appears to be from Amazon, verify its authenticity before clicking on any links or opening attachments.
  2. Verify the Sender’s Email Address: Scammers often use email addresses that resemble official ones but contain minor spelling errors or inconsistencies.
  3. Ignore Urgent Emails: Hackers use urgency to pressure users into acting without thinking. If you receive an email claiming your account is at risk, log in directly through Amazon’s official website to verify the information.
  4. Access Amazon Directly: Instead of clicking on links in emails, type www.amazon.com directly into your browser to check your account status.

Amazon’s Response to the Threat

Amazon has acknowledged the scam and is actively working to take down fraudulent sites. The company encourages users to report suspicious emails or scams through its official support page. An Amazon spokesperson stated: “Scammers pretending to be Amazon put customers at risk. We urge customers to report suspicious emails to help protect accounts and take action against bad actors.”

Cybercriminals are constantly devising new ways to deceive users, but with awareness and caution, individuals can protect themselves from falling victim to these scams. By staying informed and following best practices, users can safeguard their personal and financial information from phishing attacks.

The new phishing scam targeting Amazon Prime subscribers highlights the evolving tactics of cybercriminals. By exploiting trusted file types like PDFs and creating convincing fake websites, attackers are able to bypass traditional security measures. Users must remain vigilant, verify the authenticity of emails, and avoid clicking on suspicious links. As Amazon continues to combat these fraudulent activities, awareness and proactive measures are key to staying safe in an increasingly complex digital landscape.

Cybercriminals Exploit PDFs in Novel Mishing Campaign

 

In a recently uncovered phishing campaign, threat actors are employing malicious PDF files to target mobile device users in potentially more than fifty nations.

Dubbed as the "PDF Mishing Attack," the effort exposes new vulnerabilities in mobile platforms by taking advantage of the general belief that PDFs are a secure file format. 

The phishing campaign poses as the United States Postal Service (USPS) to earn consumers' trust and trick them into downloading infected PDFs. Once opened, the hidden links take victims to phishing pages designed to steal credentials.

"PDFs are used extensively for contracts, reports, manuals, invoices, and other critical business communications," said the zLabs team at Zimperium, who uncovered the campaign. “Their ability to incorporate text, images, hyperlinks, and digital signatures while maintaining integrity makes them ideal for enterprises prioritizing professionalism and compliance.” 

Hidden in plain sight 

Threat analysts at zLabs have been keeping a close eye on the phishing campaign, which targets only mobile devices and poses as the US Postal Service (USPS). It has discovered 630 phishing pages and over 20 malicious PDF files.

“This campaign employs sophisticated social engineering tactics and a never-before-seen means of obfuscation to deliver malicious PDF files designed to steal credentials and compromise sensitive data,” the researchers noted. 

Advanced evasion techniques hide clickable malicious URLs within PDF documents, easily bypassing traditional endpoint security solutions. This assault is primarily aimed at mobile device users, capitalising on the limited accessibility that mobile platforms provide while previewing file contents. Unlike desktop platforms, where PDFs are often used with security overlays, mobile devices lack the same safeguards, leaving users vulnerable to covert attacks. 

On threat detection 

This latest attack highlights the need for enhanced mobile threat defenses. PDFs have long been thought to be safe for sharing and storing information, however this is not the case. 

According to an HP Wolf Security report, PDF threats are on the rise. While online criminals used to primarily use PDF lures to steal credentials and financial data via phishing, there has been a shift and an increase in malware distribution via PDFs, including strains such as WikiLoader, Ursnif, and Darkgate. 

Zimperium emphasises the value of on-device threat detection to find and eliminate these scourges before they can do any damage because traditional endpoint security systems, which are sometimes made with desktop settings in mind, may not be able to detect sophisticated attacks on mobile platforms.