Malicious PDF — malware analysis report

Static analysis result for SHA-256 48bed74ca5839430…

MALICIOUS

PDF

16.0 KB Created: 2021-05-22 10:15:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 224339b15acb43f51015f7854d50348c SHA-1: 361336b651a16cd204239b1002d98fa64c43ead4 SHA-256: 48bed74ca58394306491d6da20c1ea8e5bcb08ae2a2f8f69e19fc456dc65d63e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links disguised as free game currency generators, which are actually malicious redirectors. The primary lure directs users to 'https://netcdn.xyz/app/406889139/coin-master-free-spin-codes-game-hack'. The presence of embedded URLs and the ML classifier strongly indicate malicious intent, likely to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9254

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.xyz/app/406889139/coin-master-free-spin-codes-game-hack In PDF document text
    • http://seminolechapter.com/images/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://seminolechapter.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://seminolechapter.com/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://seminolechapter.com/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://seminolechapter.com/images/10-robux_GM431946152.pdfIn PDF document text

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