Malicious PDF — malware analysis report

Static analysis result for SHA-256 acf337ec7396a063…

MALICIOUS

PDF

18.9 KB Created: 2021-06-28 18:45:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3d469114dadadd07492618c7abce2fc7 SHA-1: 7403a70fbca7e58f044c76d81e947450ef9e1d96 SHA-256: acf337ec7396a063987376141ada529c4f979a87c57751288ea88c41c0a99030
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on them by promising free game items or hacks. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.co/app/431946152/free-gfx-maker-roblox-game-hack In PDF document text
    • http://library.futureuniversity.com/repository/roblox-free-robux-codes-wiki_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-themepark-tycoon-hacked_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-cheat-no-survey_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/mango-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-cheat-speed-run_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/one-piece-millennium-roblox-free-private-server_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-hack-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text

Related samples 8

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