Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dc412b7f2c9c088…

MALICIOUS

PDF

15.5 KB Created: 2021-05-13 04:11:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e8ec732188bebdfbbddeea562ff0104 SHA-1: 70e9c6567b8d1de3953ae1e1e09bf4a25fe021cc SHA-256: 4dc412b7f2c9c0887bb37b8c0c56a1ac452dfb76c0e6dab463bf1f6021962f54
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links directing users to websites that offer 'game hacks' and 'free coins', a common lure for phishing and scam operations. The primary malicious redirector URL is https://netcdn.xyz/app/406889139/coin-master-free-pet-food-links-game-hack. The document body and embedded URLs reinforce this social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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-pet-food-links-game-hack In PDF document text
    • http://pisanie-nut.pl/images/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://pisanie-nut.pl/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://pisanie-nut.pl/images/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text