Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e7805b34c00876b…

MALICIOUS

PDF

20.4 KB Created: 2021-07-06 11:32:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: edca97e72c8b0a060f76a371c04d9c8c SHA-1: 8ee7299ca96b793450d82f422b12e9c36938e16c SHA-256: 4e7805b34c00876b49b4722ec9ab88901bd23f8f7b356fe33ababe66316f6f8e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector, disguised as a game hack generator. The primary link, http://netcdn.tw/app/406889139/coin-master-heaven-free-spins-link-2021-game-hack, is presented as a lure for free game items. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt, likely intended to lead users to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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 http://netcdn.tw/app/406889139/coin-master-heaven-free-spins-link-2021-game-hack In PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/i-hacked-lolpuggys-roblox-account-ha_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/10-robux_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/barren-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/can-i-get-a-hacked-roblox-account-back-without-email_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/free-robux-roblox-login-password_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.miriyadlussholihien.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text

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