Malicious PDF — malware analysis report

Static analysis result for SHA-256 86b144d2f381adab…

MALICIOUS

PDF

30.5 KB Created: 2021-05-12 16:11:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5a23c4889ea5dd0870a7a0a1b5f24c10 SHA-1: 8de62c59f352d77b045cea46d643c8f3f9ae8604 SHA-256: 86b144d2f381adabb0d928da0d81dba51c7cf71b69b27cf286f9287869390f00
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users to external sites, masquerading as free generators or hacks for popular games. The primary link directs to a known malicious redirector infrastructure. The document's structure and content suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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/479516143/minecraft-java-free-game-hack In PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/google-moon-active_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.polbangtan-gowa.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text

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