Malicious PDF — malware analysis report

Static analysis result for SHA-256 80906aa9ba377bff…

MALICIOUS

PDF

9.5 KB Created: 2021-06-19 03:25:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: dcef6065e997724c0933137413b4610b SHA-1: 786dcfd7893ecf1911ba59785ce1e79e81a05f62 SHA-256: 80906aa9ba377bff3ee9cad17a2b7bbf13649ca1d4f6123f9a12db790414bb5c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appear to be game hack or free currency generators. The primary redirector URL is http://netcdn.co/app/431946152/how-to-get-free-limiteds-on-roblox-2021-game-hack, which is flagged as malicious. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9744

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/how-to-get-free-limiteds-on-roblox-2021-game-hack In PDF document text
    • http://lib.untad.ac.id/repository/robux-for-free-no-robot_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-roblox-atravesar-paredes_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-hack-robux-and-tix-cheat-tool-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/my-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/tiktok-free-online-textbooks_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-robux-and-obcxdaniel_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-robux-in-the-game_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text

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