Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Alerts

USPS Phishing Campaign Targets Mobile Users

January 28, 2025
Reading Time: 2 mins read
in Alerts
GitHub and Git Projects Expose Credentials

A sophisticated phishing campaign targeting mobile users has been discovered, using malicious PDFs disguised as official U.S. Postal Service (USPS) communications. The attack starts with SMS messages alerting recipients about undelivered USPS packages, which includes an attached PDF. The PDF files, while appearing legitimate, contain hidden clickable elements that lead victims to phishing websites. These sites impersonate USPS pages and prompt users to enter personal information such as names, addresses, and credit card details to resolve the supposed delivery issues.

The malicious PDFs employ a novel obfuscation technique to bypass standard security measures. The attackers exploit the structure of Portable Document Format (PDF) files, which includes objects like strings, arrays, and streams. Typically, hyperlinks in PDFs are represented with a “Go-To-URI” action dictionary object, but the attackers use a more advanced method to hide the links.

By embedding these links in compressed stream objects and splitting URLs across multiple objects, the attackers make detection more difficult.

This strategy is particularly effective when opened on mobile devices, where visibility into file contents is limited. The attackers also utilize techniques such as white text or graphical overlays within the PDF content stream to further conceal the malicious URLs. These methods make it extremely hard for both the user and endpoint security tools to spot the hidden links, allowing the attackers to avoid detection by traditional security solutions.

Once the victims submit their sensitive data through the phishing websites, the attackers encrypt the information and transmit it to their servers. This highly effective campaign highlights the growing sophistication of cyber threats targeting mobile users, exploiting weaknesses in both user awareness and security defenses. The discovery of these techniques by Zimperium’s zLabs team underscores the importance of continually evolving security measures to defend against such advanced phishing tactics.

Reference:
  • USPS Phishing Attack Uses Hidden Links in Malicious PDFs to Steal User Information
Tags: Cyber AlertsCyber Alerts 2025CyberattackCybersecurityJanuary 2025
ADVERTISEMENT

Related Posts

Fake Firms Push Malware on Crypto Users

Fake Sites Push Investment Scams

July 11, 2025
Fake Firms Push Malware on Crypto Users

Severe WordPress Flaw 200K Sites at Risk

July 11, 2025
Fake Firms Push Malware on Crypto Users

Fake Firms Push Malware on Crypto Users

July 11, 2025
Hackers Revive SEO Poisoning

Hackers Revive SEO Poisoning

July 10, 2025
Hackers Revive SEO Poisoning

RondoDox Botnet Exploits Router Flaws

July 10, 2025
Hackers Revive SEO Poisoning

ServiceNow Data Exposure via ACLs

July 10, 2025

Latest Alerts

Fake Sites Push Investment Scams

Fake Firms Push Malware on Crypto Users

Severe WordPress Flaw 200K Sites at Risk

RondoDox Botnet Exploits Router Flaws

ServiceNow Data Exposure via ACLs

Hackers Revive SEO Poisoning

Subscribe to our newsletter

    Latest Incidents

    Microsoft’s Outlook Long Outage

    Avantic Lab Affected By Ransomware

    $40M+ Stolen from GMX Crypto Platform

    Bitcoin Depot Breach Exposes Data

    McDonald’s AI Hiring Bot Exposes Data

    Nippon Steel Solutions Data Breach

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial