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MutantBedrog is a malvertising threat actor associated with highly disruptive forced-redirect campaigns that use a distinctive multi-stage JavaScript payload. The actor fingerprints devices client-side, manipulates the DOM, and triggers invasive redirects that send users to scam landing pages. Its tooling has demonstrated unusual sophistication for malvertising operations, including repeated use of Content Security Policy Trusted Types APIs to enable script and HTML injection paths during execution. The actor’s payload is designed to operate in same-origin ad-serving contexts, including friendly iframe scenarios, where it can interact with the top-level document. Observed behavior includes staged creation of Trusted Types policies for script URLs, HTML, and script content, allowing subsequent payload components to continue execution through protected DOM sinks that would otherwise be constrained by Trusted Types enforcement. This reflects a strong understanding of browser security mechanisms and specification-level limitations rather than reliance on a browser zero-day. MutantBedrog is known for forced redirects, device fingerprinting, and invasive client-side execution chains used to deliver scam traffic. The available evidence supports classification as a financially motivated malvertiser focused on redirect monetization and related fraud activity. No high-confidence attribution to a nation state or specific country of origin is currently available.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
3 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.