Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Rumi Lofi Girl Sytle Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Google's own privacy policy used — does NOT cover this extension's data practices; effectively no scoped policy.
• NewTab override with install+uninstall URL hijacks pointing to gameograf.com monetization tracking parameters.
• operator_cluster: 46 siblings under same dev email, 2 under compound fingerprint — mass-deployment shell pattern.
• innerHTML DOM-XSS sinks in popup.js and calendar.js with no CSP (MV3 default but csp_present==false).

Evidence

• newtab_override manifest chrome_url_overrides.newtab set — replaces every new tab with extension page.
• uninstall_url_hijack crx setUninstallURL -> https://gameograf.com/?utm_source=extension&utm_medium=install
• install_url_hijack crx onInstalled opens https://gameograf.com/?utm_source=lofi&utm_medium=install
• privacy_policy_generic store Policy URL is Google's account policy — scope_extension=false, data_collection=true, third_party_sharing=true.
• operator_cluster api dev_email siblings: 46; compound fingerprint siblings: 2 — indicates mass-produced shell deployment.
• dom_xss_sink crx innerHTML assigned from variable in popup.js and calendar.js; no CSP guard present.
• verified_publisher store Verified publisher badge present but no developer name shown; does not override monetization signals.
• webstore_newtab_monetization store NewTab category + install/uninstall URL hijack + operator cluster = monetization shell pattern.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Rumi Lofi Girl Sytle Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.25 -> 7.75 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding search behavior; combined with newtab override elevates risk.
• host_permissions: https://api.gameograf.com/* medium Scoped to dev's own API domain; enables data exfil to controlled endpoint.
• chrome_url_overrides.newtab medium Replaces new-tab page — primary monetization and tracking surface for this category.

Pillar Scores

Operator Siblings (2)

Other extensions sharing this developer's compound fingerprint:

• fcdbgdemnnhlecadmdcnbgnkggpejnob
• npofmnnbidppdfjnfdcjicgmhhmahepm

Bookkeeping