Malicious PDF — malware analysis report

Static analysis result for SHA-256 30280d0e2e946664…

MALICIOUS

PDF

34.4 KB Created: 2020-01-17 19:18:29 +03:00 Authoring application: Microsoft Word: LaserWriter 8 8.6.5 (via Acrobat Distiller 4.0 for Macintosh)
MD5: d9c3ef8695e9b0c3c778cc0fffd52487 SHA-1: 946551e735218106376241055c30299caaa85eb6 SHA-256: 30280d0e2e946664911b681dd5a2341e7716487f436ab63d8c82a14bc7d08e90
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents hosted on the same domain, suggesting a link farm or a method to distribute content. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8018

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/off-the-beaten-track-three-centuries-of-women-travellers.pdf
    • http://www.gorillawalker.com/memorias-presentadas-al-xix-congreso-internacional-de-los-americanistas-ii.pdf
    • http://www.gorillawalker.com/handbook-of-legislative-research.pdf
    • http://www.gorillawalker.com/the-deal-the-dance-and-the-devil.pdf
    • http://www.gorillawalker.com/ragnarok-5-twilight-of-terror.pdf
    • http://www.gorillawalker.com/by-my-side-safe-word-oasis-book-2.pdf
    • http://www.gorillawalker.com/the-journal-of-beatrix-potter-from-1881-to-1897.pdf
    • http://www.gorillawalker.com/bailey-loves-a-short-practice-of-surgery-22e-22nd-ed.pdf
    • http://www.gorillawalker.com/invertebrate-neurobiology-cold-spring-harbor-monograph-series.pdf
    • http://www.gorillawalker.com/hollywood-s-new-radicalism-war-globalisation-and-the-movies-from.pdf
    • http://www.gorillawalker.com/the-poet-s-house.pdf
    • http://www.gorillawalker.com/introduction-to-contemporary-special-education-new-horizons-loose-leaf-version.pdf
    • http://www.gorillawalker.com/witchcraft-and-magic-in-europe-volume-1-biblical-and-pagan.pdf
    • http://www.gorillawalker.com/healthcare-management-and-economics-perspectives-on-public-and-private-administration.pdf
    • http://www.gorillawalker.com/bergson-and-phenomenology.pdf
    • http://www.gorillawalker.com/lady-renegade-legacy-of-the-blade-book-2.pdf
    • http://www.gorillawalker.com/the-liberal-persuasion.pdf
    • http://www.gorillawalker.com/the-berlin-wall-today-remnants-ruins-remembrances-a-new-picture.pdf
    • http://www.gorillawalker.com/risk-in-social-science.pdf
    • http://www.gorillawalker.com/internet-routing-architectures-2nd-edition.pdf
    • http://www.gorillawalker.com/formulas-for-stress-strain-and-structural-matrices.pdf
    • http://www.gorillawalker.com/get-into-law-school-kaplan-test-prep.pdf
    • http://www.gorillawalker.com/hudibras-in-three-parts-volume-1.pdf
    • http://www.gorillawalker.com/god-game.pdf
    • http://www.gorillawalker.com/ks3-physics-study-question-book-with-online-edition-higher-paperback.pdf
    • http://www.gorillawalker.com/complete-manual-of-classical-dance-enrico-cecchetti-method-vol-1.pdf
    • http://www.gorillawalker.com/the-student-bible-atlas.pdf
    • http://www.gorillawalker.com/reading-project-a-collaborative-analysis-of-william-poundstone-s-project.pdf
    • http://www.gorillawalker.com/stockley-s-drug-interactions-8th-edition.pdf
    • http://www.gorillawalker.com/captivating-cats-calendar-cd-rom-retail-box.pdf
    • http://www.gorillawalker.com/the-magic-of-the-matrix-making-arithmetic-practice-fun.pdf
    • http://www.gorillawalker.com/essentials-of-medical-chemistry-organic-and-inorganic-containing-also-questions.pdf
    • http://www.gorillawalker.com/op-naar-geluk-dutch-edition.pdf
    • http://www.gorillawalker.com/decoding-the-heavens-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/algebraic-aspects-of-the-advanced-encryption-standard.pdf
    • http://www.gorillawalker.com/two-duets-op-47-kalmus-edition.pdf
    • http://www.gorillawalker.com/the-concise-oxford-dictionary-of-literary-terms-oxford-paperback-reference.pdf
    • http://www.gorillawalker.com/chemical-genomics-small-molecule-probes-to-study-cellular-function-ernst.pdf
    • http://www.gorillawalker.com/us-army-technical-manual-tm-5-3610-294-13-p.pdf
    • http://www.gorillawalker.com/tibetan-lives-three-himalayan-autobiographies.pdf
    • 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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