Malicious PDF — malware analysis report

Static analysis result for SHA-256 03eacd53dd2fbe93…

MALICIOUS

PDF

9.5 KB Created: 2021-06-04 04:06:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e564da3758e3751dcaa4a5276bdc1d2 SHA-1: 97b686ecb5c78335074b39163e3741d6601223cc SHA-256: 03eacd53dd2fbe9372cc6cad20e946c51308f5ee16973a7a5b9546c41b1cb9c5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link to a URL that promises free spins and coins for the game Coin Master. This is a common lure for phishing or scam websites. The ML classifier also flagged the PDF as malicious with a high score. No scripts were extracted from this sample, but the presence of the external URI suggests an attempt to redirect the user to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9155

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.online/app/406889139/coin-master-daily-gift-free-spins-and-coins-link-game-hack In PDF document text

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