Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Wave Symphony Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab page; paired with uninstall/install URL hijacks revealing monetization shape.
• Uninstall URL hijack and install URL hijack both redirect to gameograf.com with UTM tracking params.
• New-tab override with search permission and monetization signals: classic ad-monetization shell pattern.
• No developer name listed; missing Offered-by identity despite verified-publisher badge.

Evidence

• newtab_override manifest chrome_url_overrides.newtab=newtab.html replaces all new-tab pages for a wallpaper extension.
• uninstall_url_hijack crx setUninstallURL points to gameograf.com with UTM params — monetization tracking on exit.
• install_url_hijack crx onInstalled opens gameograf.com with UTM params — install-time redirect to 3rd-party URL.
• no_csp manifest content_security_policy is null on MV3 extension; no explicit CSP strengthening.
• dom_xss_sink crx js/calendar.js uses innerHTML from a variable with no CSP — DOM-XSS risk if data is attacker-influenced.
• verified_publisher store Verified publisher badge present; reduces reputation risk but does not explain monetization hooks.
• search_permission manifest 'search' permission declared alongside newtab override; consistent with search-query monetization.
• privacy_policy api Policy fetched, scoped to extension, discloses data collection, retention, and third-party sharing.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Wave Symphony Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 4.31 -> 6.81 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows reading/manipulating search queries; elevated for a NewTab wallpaper extension.
• alarms low Schedules periodic callbacks; minimal standalone risk.
• storage low Stores extension settings locally.
• chrome_url_overrides.newtab high Replaces every new-tab page; high-reach monetization surface for a wallpaper app.
• host_permissions: https://api.gameograf.com/* medium Scoped to developer's own API; limited blast radius but all traffic goes to one operator.

Pillar Scores

Bookkeeping