Malicious PDF — malware analysis report

Static analysis result for SHA-256 d805e3d484e03bf0…

MALICIOUS

PDF

32.2 KB Created: 2020-03-27 01:11:30 +03:00 Authoring application: - (via Acrobat Distiller 2.0 for Macintosh)
MD5: 1018160291fffb2912bdc648274bdc22 SHA-1: 9f536f3f15fb2063838be97e33979e6f1d24836c SHA-256: d805e3d484e03bf0bafa9ff0ba05d81c847c36061e4a8a3e429a9965a3472cb1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

Heuristics 2

  • 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 http://www.gorillawalker.com/academic-festival-overture-op-80-original-version-trombone-1-2.pdf
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    • http://www.gorillawalker.com/first-principles-basics-of-biblical-faith.pdf
    • http://www.gorillawalker.com/howard-gardner-under-fire-the-rebel-psychologist-faces-his-critics.pdf
    • http://www.gorillawalker.com/spying-beginners-plus.pdf
    • http://www.gorillawalker.com/chemistry-the-molecular-nature-of-matter-sixth-edition.pdf
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    • http://www.gorillawalker.com/nativism-zionism-and-beyond-b-g-rudolph-lectures-in-judaic.pdf
    • http://www.gorillawalker.com/parallel-lives-annotated-with-active-table-of-contents-kindle-edition.pdf
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    • http://www.gorillawalker.com/rapid-first-responder-pocket-guide-revised-reprint-1e.pdf
    • http://www.gorillawalker.com/now-is-the-dawning-of-the-new-age-new-world.pdf
    • http://www.gorillawalker.com/masterminds.pdf
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    • http://www.gorillawalker.com/debtors-and-creditors-in-america-insolvency-imprisonment-for-debt-and.pdf
    • http://www.gorillawalker.com/japan-comes-of-age-mutsu-munemitsu-and-the-revision-of.pdf
    • http://www.gorillawalker.com/reworlding-the-literature-of-the-indian-diaspora-contributions-to-the.pdf
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    • http://www.gorillawalker.com/tout-bec-doux-the-complete-cajun-comics-of-ken-meaux.pdf
    • http://www.gorillawalker.com/241-277-gro-kommentare-der-praxis-german-edition.pdf
    • http://www.gorillawalker.com/teaching-with-love-logic-taking-control-of-the-classroom.pdf
    • http://www.gorillawalker.com/conjugate-gaze-somato-emotional-release-a-novel-approach-to-physiotherapeutic.pdf
    • http://www.gorillawalker.com/11-practice-tests-for-the-sat-and-psat-2013-edition.pdf
    • http://www.gorillawalker.com/a-perfect-red-empire-espionage-and-the-quest-for-the.pdf
    • http://www.gorillawalker.com/bones-andrella-the-goth-book-3.pdf
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    • http://www.gorillawalker.com/excursions-in-modern-mathematics-books-a-la-carte-edition-plus.pdf
    • http://www.gorillawalker.com/frommer-s-easyguide-to-france-2014-easy-
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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