Malicious PDF — malware analysis report

Static analysis result for SHA-256 656710381879fbed…

MALICIOUS

PDF

31.2 KB Created: 2021-05-16 02:04:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 020f4d05a0660927d1710e732120e66d SHA-1: db0a510a68b8c94cebada345ea48412650ea14ea SHA-256: 656710381879fbed0184e610a3026e7d893693ebef04bafc126341644c9679cb
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links designed to lure users to external websites, masquerading as generators for in-game currency or hacks. The primary redirector URL, https://netcdn.xyz/app/431946152/free-robux-instantly-game-hack, is associated with malicious redirector infrastructure. The document body and embedded links suggest a phishing or scam attempt, likely to lead users to further malicious content or exploit kits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/free-robux-instantly-game-hack In PDF document text
    • http://gavertrimmers.be/images/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://gavertrimmers.be/images/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gavertrimmers.be/images/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://gavertrimmers.be/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text

Related samples 8

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