Tracked campaign: Gameograf / Ovkas wallpaper adware

Our analysis confirmed the behaviour described in the threat library entry. Read the analysis and indicators →

Also reported by raw.githubusercontent.com

Chrome Web Store

Mazda RX-7 Ryomen Sukuna (Yuji Itadori) Live Wallpaper

by [email protected] · 272 users · 5.0 rating
e84318da-70c8-5ff8-835b-6fd4468d623d | v4.5.3

Marketplace listing not found

Our last marketplace check could not find this listing in Chrome Web Store. It may have been removed or delisted. Existing installs may still run, but verify the publisher and package source before installing or updating.

Not found on Today
0/ 100
MINIMAL risk
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
7 months ago
Version
v4.5.3
Artifact
SHA256 3CE…9FA
Source
Findings (non-IoC)

No Findings

All security checks passed

Publisher Evidence

Limited evidence

[email protected]

Publisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.

Chrome does not expose the same publisher verification data as IDE stores, so this score is deliberately conservative.

24
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Limited signal
Limited
Extension portfolio
Unknown
Portfolio

10 evidence rows available.

No Threats Detected

This extension passed all security checks

AI Security Report

AI Security Review

Evidence context: threat category none; evidence quality weak.

The extension 'Mazda RX-7 Ryomen Sukuna Live Wallpaper' shows 347 total findings, but 328 of these are IoC detections that follow well-documented false positive patterns. The IoC findings include property access chains misread as domains: o.call, i.call, ae.call, n.call, and ce.map are all JavaScript method calls (e.g., object.call(), array.map()) that the XIOC extractor incorrectly parses as domain names. Additionally, jquery.org is a legitimate CDN domain used by thousands of extensions for loading the jQuery library, not a malicious indicator.

Zero malware signatures were detected in this extension. The findings summary shows "malware-signature":"0" and "malware":"0". There are no obfuscation findings ("obfuscation":"0"), no network findings ("network":"0"), and no tool-poisoning indicators. The 19 low-severity code-smell findings are YARA rule noise matching basic JavaScript patterns like fetch, crypto, and process.env references—these are classified as code-smell/low and should not drive verdicts according to CVEQ documentation.

The extension serves a legitimate purpose: providing anime-themed live wallpapers for Chrome. There are no indicators of browser hijacking (no search engine manipulation, no new tab replacement), no credential theft patterns (no login domain targeting, no cookie exfiltration), and no proxyware functionality. The developer uses a Gmail address ([email protected]) rather than a verified publisher account, but this is common for small niche extensions with only 81 users.

The only potentially real finding is t.top, a short domain that could indicate redirect or monetization activity. However, without corroborating evidence such as malware signatures, obfuscation, or suspicious network behavior, this single finding is insufficient to classify the extension as malicious. The extension's description matches its stated purpose, and there is no evidence of impersonation or typosquatting.

A skeptic might argue that the anonymous developer and the t.top domain warrant caution. While legitimate concern exists for extensions with unverified publishers, the overwhelming evidence here points to false positives: the 328 IoCs follow documented XIOC extraction error patterns, and the extension lacks any actual malware indicators. The verdict remains likely_false_positive because finding COUNT is not evidence—finding NATURE is evidence, and the nature of these findings is benign extraction artifacts.

Key Reasons

  • Zero malware signatures detected in the extension
  • IoC findings are property access chains misread as domains (o.call, i.call, ae.call, ce.map)
  • jquery.org is a legitimate CDN domain, not malicious
  • No obfuscation or browser hijacking indicators present
  • Extension serves legitimate live wallpaper purpose matching description

False Positive Considerations

  • Property access chains misidentified as domains
  • Legitimate CDN domains (jquery.org)
  • Code-smell YARA rules matching standard JavaScript patterns
  • XIOC extractor false positive patterns

Reviewed 2026-04-27; recommended action: suppress false positive; model confidence 85%.

About This Extension

Enter a dark fusion of anime power and JDM performance with Ryomen Sukuna (within Yuji Itadori) from Jujutsu Kaisen alongside the iconic Mazda RX-7. Known as the King of Curses, Sukuna embodies overwhelming strength, dominance, and a terrifying presence. This live wallpaper captures Sukuna standing beside the legendary RX-7, surrounded by a cinematic blend of neon street lighting and cursed energy. The sleek curves of the RX-7 combined with Sukuna’s intense aura create a bold and unforgettable visual experience every time you open a new tab. Perfect for fans of Jujutsu Kaisen, JDM culture, and those who enjoy powerful anime villains paired with legendary performance cars. Features 🚗 Mazda RX-7 themed car + anime live wallpaper 😈 Ryomen Sukuna (Yuji Itadori) inspired dark atmosphere ⚡ Dynamic visuals blending JDM style with cursed energy 🖱️ Shortcut links, date and time on the new tab 🔗 Quick access site shortcuts 🔍 It searches using the search engine selected by the user 📌 Provided more extension 🚀 Fuel Your Screen with Action-Packed Anime & High-Speed Rides! 🚀 From anime heroes to legendary cars and iconic worlds, Ovkas.com delivers premium live wallpapers designed to transform your Chrome new tab into an immersive visual experience. 💥 Want even more? Head to the Chrome Web Store, type "ovkas", and explore more anime, gaming, and aesthetic live wallpapers. ✨ Visit Ovkas.com and bring your digital world to life today! ✨ Google Chrome Affiliate Program Disclosure This extension, when installed, opens the ovkas.com website in your new tab to provide information about the downloaded extension. It is designed to enhance user experience, offer access to similar extensions, and help users create their own. The extension may contain links to specific services or products per policy. All redirects are designed for user benefit and require consent before any action is taken.

Frequently Asked Questions