Malicious PDF — malware analysis report

Static analysis result for SHA-256 abc496a5bb3add24…

MALICIOUS

PDF

14.8 KB Created: 2021-06-03 12:38:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 60d9d7b6b4bcad8994c3ce2ffeddecef SHA-1: 5cf9ee9d351024b645169b8fb7a1e685850270c2 SHA-256: abc496a5bb3add247b4698ead782d41da927edf48a049684385d74d17d2f2e0b
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic firing for linking to a game hack generator, specifically for Coin Master. The embedded URL, https://netcdn.online/app/406889139/coin-master-free-spins-and-free-coins-game-hack, likely leads to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to trick users into visiting a potentially harmful external resource, aligning with a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9661

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 https://netcdn.online/app/406889139/coin-master-free-spins-and-free-coins-game-hack PDF link annotation
    • http://lib.fekon.untad.ac.id/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-robux-2021-no-human-In PDF document text

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