Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b68fe71ab6b0103…

MALICIOUS

PDF

9.0 KB Created: 2021-07-06 19:18:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b87fa7c42ff9bf34b34e4c8eb35924a2 SHA-1: bbba6c4b922abc2014068ddc648d2fead065ea21 SHA-256: 9b68fe71ab6b01038e7389c0e4e5c270e9fb30be90752c70ce9b3470680a1f8e
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that are explicitly identified as game hack lures, directing users to potentially malicious websites. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the presence of these lures and the overall structure suggest an attempt to trick users into downloading further malware or visiting phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-apk-hack-32-game-hack PDF link annotation
    • http://www.woundcare4heroes.org.uk/uploads/files/files/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/i-hacked-fgteev-duddys-account-roblox_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/free-robux-everyday_GM431946152.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://www.woundcare4heroes.org.uk/uploads/files/files/earn-free-robux-today_GM431946152.pdfIn PDF document text

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