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@petergs
Last active November 23, 2024 19:59
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Fidelity Smishing Campaign November 2024

Fidelity SMS Phishing Campaign November 2024

Overview

Fidelity-themed phishing campaign observed November 2024

Techniques & Tactics

  • Use of CloudFlare anti-bot features to prevent automated access
  • Use of server-based User-Agent checks to discourage access by non-phone devices
  • Use of Javascript-based checks on viewport dimensions and User-Agent to discourage access by non-phone devices
  • Phishing

Example SMS

Fidelity: login detected if this wasn't you view https://is[.]gd/<redacted>

IOCs

Initial payload

Raw

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
<meta name="robots" content="noindex, nofollow" />
<!-- Start: Ad code and script tags for header of page -->
<!-- End: Ad code and script tags for header of page -->
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            var d = b.createElement('script');
            d.innerHTML = "window.__CF$cv$params={r:'8e6326aeadaed6c1',t:'MTczMjIxODAyMi4wMDAwMDA='};var a=document.createElement('script');a.nonce='';a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";
            b.getElementsByTagName('head')[0].appendChild(d)
        }
    }
    if (document.body) {
        var a = document.createElement('iframe');
        a.height = 1;
        a.width = 1;
        a.style.position = 'absolute';
        a.style.top = 0;
        a.style.left = 0;
        a.style.border = 'none';
        a.style.visibility = 'hidden';
        document.body.appendChild(a);
        if ('loading' !== document.readyState) c();
        else if (window.addEventListener) document.addEventListener('DOMContentLoaded', c);
        else {
            var e = document.onreadystatechange || function() {};
            document.onreadystatechange = function(b) {
                e(b);
                'loading' !== document.readyState && (document.onreadystatechange = e, c())
            }
        }
    }
})();
</script>
</body>
</html>

References

Further on verify-digitalfidelity[.]us payloads

Paths

  • /Login/login.php
    • Initial landing page if limited anti-analysis techniques are bypassed
    • Steals Fidelity login info
  • /Login/otp.php
    • OTP verification interface
    • Seems to function only to give the appearance of legitimacy, but I never provided a legitimate email
    • Submission of anything seems to succeed, but I only tried with 6-digit number sequences
  • /Login/email/gmail.php
    • Use of a gmail login on login.php redirects to this Gmail phishing page
  • /Login/personal_verification.php
    • Gathers address, phone number, full name
  • /Login/card_verify.php
    • Presumably gathers credit card details
  • /Login/email_verification.php
  • /Login/email/microsoft.php
    • Use of a live.com login on login.php redirects to this Microsoft phishing page
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