Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Sonic the Hedgehog Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override replaces every new tab with extension-controlled page — core monetization surface.
• Uninstall URL hijack to owhit.com and install URL hijack both confirmed — classic traffic-monetization shell.
• Privacy policy is Google's own policy, not scoped to this extension; admits data collection and 3rd-party sharing.
• Developer name is email only (no verified publisher); developer listed as walltab.com but install/uninstall redirect to owhit.com.

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL → https://owhit.com/uninstall; 3rd-party redirect confirmed.
• install_url_hijack crx onInstalled opens https://owhit.com/sonic-the-hedgehog-live-wallpaper/ — 3rd-party monetization page.
• newtab_override manifest chrome_url_overrides.newtab = index.html; every new tab is replaced by extension-controlled content.
• privacy_policy_generic store Policy URL is Google account privacy policy; scope_extension=false, data_collection=true, 3rd_party_sharing=true.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit CSP set.
• js_external_hosts crx 8 external hosts contacted: owhit.com, chat.openai.com, netflix.com, instagram.com, x.com, youtube.com, google.com, chrome.google.com.
• developer_identity store Developer name is email info@walltab.com; no verified publisher badge; walltab.com resolves but no org name.
• new_tab_monetization_pattern store Wallpaper/theme shell with newtab override + install/uninstall hijack matches known traffic-monetization cluster.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Sonic the Hedgehog Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 5.47 -> 7.97 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows querying browser search API; in a NewTab override context enables search provider manipulation.
• chrome_url_overrides.newtab high Replaces every new tab with extension page; primary monetization surface for this shell pattern.

Pillar Scores

Bookkeeping