Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca71efa58012ba7…

MALICIOUS

PDF

20.3 KB Created: 2021-07-01 11:10:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e46994563aa722d8403ff7e8ce4d172 SHA-1: 0532edcaa883df3be325e101fa05d22225213e29 SHA-256: 2ca71efa58012ba78a5f7c4fb58554912f96dc8a0d1b97d345da5177403b4d2a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary redirector URL identified is http://netcdn.co/app/431946152/free-roblox-outfits-game-hack. This pattern suggests the document is designed to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

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.co/app/431946152/free-roblox-outfits-game-hack In PDF document text
    • http://lib.vipklh.ru/repository/code-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-games-on-roblox-rpg-rainbow-swords-rpg_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/i-hacked-fgteev-duddys-account-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/wild-savanah-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-make-a-group-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-do-you-get-admin-by-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-get-free-robux-ipad_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/prix-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-hack-v414_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-free-clothes-in-catalog_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-pins-of-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text

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