Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Spider-man Falling Upside Down Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override combined with install/uninstall URL hijack indicates monetization shell pattern.
• Uninstall URL hijack to gameograf.com with UTM tracking parameters.
• Install URL hijack to gameograf.com fires on every install; behavioral tracking.
• Two innerHTML DOM-XSS sinks with no CSP; MV3 default CSP mitigates but code is risky.

Evidence

• newtab_override manifest chrome_url_overrides.newtab = newtab.html; replaces every new tab page for all users.
• uninstall_url_hijack crx setUninstallURL to https://gameograf.com/?utm_source=gameograf&utm_medium=link&utm_campaign=bg&utm_content=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=install&utm_medium=link&utm_campaign=bg&utm_content=install
• dom_xss_sink crx innerHTML sinks in popup.js and calendar.js with no CSP declared; DOM-XSS risk.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening.
• verified_publisher store gameograf.com verified publisher; domain resolves, not throwaway, privacy policy scoped.
• privacy_policy_classification api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• search_engine_count api Only 1 search engine (google.com) seen; no multi-engine ad aggregation pattern detected.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Spider-man Falling Upside Down Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.08 -> 6.58 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading search queries; medium risk in a NewTab context with search override potential.
• host_permissions: https://api.gameograf.com/* low Scoped to developer's own API domain; limited blast radius.
• chrome_url_overrides.newtab medium Replaces new tab page; monetization vector and behavioral tracking risk.

Pillar Scores

Bookkeeping