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

Straw Hat Luffy Live Wallpaper

by [email protected] · 685 users
f7fb92dd-ba3b-536c-a471-6871c0424add | v4.4.3
44/ 100
MEDIUM risk
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
7 months ago
Version
v4.4.3
Artifact
SHA256 97F…5D4
Source
Findings (non-IoC)

Evidence ledger

Ranked by severity · findings with a source location link to the code viewer

18 detail rows

YARA Rule Matches

8 rules
SeverityRuleHitsFilesMetadata
LOWpostinstall crypto operations 2
jquery-3.7.1.min.js_metadata/verified_contents.json
-
LOWpostinstall file manipulation 3
jquery-3.7.1.min.jsscript.jsstyle.css
-
LOWpostinstall obfuscation 2
jquery-3.7.1.min.jsimg/bg.mp4
-
LOWpostinstall network communication 4
jquery-3.7.1.min.jsimg/bg.mp4_metadata/verified_contents.json +1 more
-
LOWpostinstall system command 2
jquery-3.7.1.min.jsimg/bg.mp4
-
LOWSQLInjection 2
script.jsjquery-3.7.1.min.js
-
LOWNoUseWeakRandom 2
script.jsjquery-3.7.1.min.js
-
LOWLocalStorageShouldNotBeUsed 1
script.js
-

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.

39
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Limited signal
Limited
Extension portfolio
20
Portfolio

12 evidence rows available.

Finding Categories

405
IoC Indicators

YARA Rules Matched

8 rules(18 hits)
postinstall crypto operations postinstall file manipulation postinstall obfuscation postinstall network communication postinstall system command SQLInjection NoUseWeakRandom LocalStorageShouldNotBeUsed

Requested Permissions

1 permission
search
Low

AI Security Report

AI Security Review

Evidence context: threat category none; evidence quality weak.

The extension 'Straw Hat Luffy Live Wallpaper' (UUID: f7fb92dd-ba3b-536c-a471-6871c0424add) presents an unusual case: the findings_by_category field is completely empty, indicating zero IoCs, zero code-smell detections, and zero malware signatures were identified. The extension claims to provide a One Piece-themed live wallpaper for Chrome's new tab page, which is a legitimate use case for browser extensions.

The developer attribution shows a generic Gmail address ([email protected]) rather than a verified organization or known publisher. The extension has 47 users, indicating minimal adoption. Version 4.4.3 suggests multiple updates over time, implying some level of maintenance.

The critical issue is that zero findings is atypical for any non-trivial browser extension. A standard extension with JavaScript code would normally trigger at least some code-smell YARA rules (even if benign) and potentially some IoC matches from bundled dependencies or legitimate external resources. The complete absence of findings raises two possibilities: either the analysis did not execute properly (no files scanned), or the extension contains minimal code that evades all detection rules.

There is no evidence of typosquatting or impersonation. The extension name is specific to One Piece anime content and does not mimic any well-known extension brand. No suspicious domains, credential access patterns, or obfuscation indicators were found because no findings exist to evaluate.

Counterargument: A skeptic might argue that zero findings means the extension is genuinely safe and should receive a 'likely_false_positive' or 'benign_but_powerful' verdict. However, this reasoning is flawed because 'likely_false_positive' requires actual findings that are benign in nature. Here, there are no findings at all, which is distinct from benign findings. Without confirmation that the scanning process actually ran and analyzed the extension's files, we cannot confidently assert the extension is safe.

Resolution needed: Reanalysis is required to confirm whether files were scanned and to verify the extension's actual codebase. If reanalysis produces findings, they can then be properly evaluated. If reanalysis confirms zero findings, the extension can be reassessed as genuinely clean.

Key Reasons

  • Zero findings across all categories is atypical and requires verification
  • Generic Gmail developer email provides no publisher verification
  • Low user count (47) limits real-world threat data
  • No evidence of malicious behavior but also no evidence of analysis completion

False Positive Considerations

  • Empty findings may indicate incomplete scan rather than clean code

Reviewed 2026-04-23; recommended action: reanalyze; model confidence 60%.

About This Extension

Set sail with Monkey D. Luffy, the fearless captain of the Straw Hat Pirates from One Piece. Wearing his iconic straw hat and carrying the dream of becoming the Pirate King, Luffy represents freedom, courage, and unstoppable determination. This live wallpaper captures Luffy’s adventurous presence and heroic energy, transforming your Chrome new tab into a vibrant anime moment inspired by the legendary journey across the Grand Line. Perfect for One Piece fans and anime lovers, this live wallpaper delivers a bold and inspiring browsing experience filled with pirate adventure. Features 🏴‍☠️ Straw Hat Luffy themed anime live wallpaper 🌊 Inspired by the One Piece adventure atmosphere ⚡ Iconic pirate captain aesthetic visuals 🖱️ 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 pirate legends to anime heroes, 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 discover more anime live wallpapers, themes, and powerful extensions. ✨ 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