Malicious PDF — malware analysis report

Static analysis result for SHA-256 3017d8a395ac82d7…

MALICIOUS

PDF

15.6 KB Created: 2021-05-21 15:42:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fba0f765353fa7f0a30d8b0e052b476e SHA-1: eb8fdab5764637bad73904360e25afd38ccecfc1 SHA-256: 3017d8a395ac82d78e066ca2a8399f97cbacb603b384f0b22071d3cd25ff8eeb
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically advertising 'free generator / game hack' lures. The ML classifier also flagged this PDF as malicious. The document body text and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9052

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/431946152/free-hair-roblox-game-hack In PDF document text
    • http://www.khneisser.ch/uploaded_files/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://www.khneisser.ch/uploaded_files/userfiles/files/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://www.khneisser.ch/uploaded_files/userfiles/files/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • http://www.khneisser.ch/uploaded_files/userfiles/files/get-robux-today_GM431946152.pdfIn PDF document text
    • http://www.khneisser.ch/uploaded_files/userfiles/files/coin-master-level-4_GM406889139.pdfIn PDF document text

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