Malicious PDF — malware analysis report

Static analysis result for SHA-256 f76eeda61329efac…

MALICIOUS

PDF

33.6 KB Created: 2019-11-23 19:52:26 +03:00 Authoring application: GPL Ghostscript 8.64 (via Adobe PDF Library 8.0)
MD5: 50073f1e24dfe94c7a3bc758cd27f2d1 SHA-1: 57dbdb5eee1a39e21f596f88aed5767685be80c9 SHA-256: f76eeda61329efacd0e842da54e3a008d70edf9a920f74051c86fa214a399666
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, likely intended for SEO manipulation or to serve as a distribution point for further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the immediate user-facing lure.

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/prepared-food-baking-mix-manufacturing-in-the-us-industry-market.pdf
    • http://www.gorillawalker.com/twinkle-dives-in-butterfly-meadow.pdf
    • http://www.gorillawalker.com/sierra-nevada-the-naturalist-s-companion-revised-edition.pdf
    • http://www.gorillawalker.com/manuel-de-godoy-y-la-reina-mar-a-luisa-spanish.pdf
    • http://www.gorillawalker.com/volcanoes-turtleback-school-library-binding-edition-all-aboard-reading-level.pdf
    • http://www.gorillawalker.com/wiley-pathways-small-business-accounting.pdf
    • http://www.gorillawalker.com/first-frcr-anatomy-mock-papers.pdf
    • http://www.gorillawalker.com/praise-the-lord-every-land-and-nation-organ-or-piano.pdf
    • http://www.gorillawalker.com/the-fairy-queen-kalmus-edition.pdf
    • http://www.gorillawalker.com/borderline-personality-disorder-understanding-the-unconscious-function-of-deliberate-self.pdf
    • http://www.gorillawalker.com/your-heart-bridgestone-science-library.pdf
    • http://www.gorillawalker.com/innocenti-lambretta.pdf
    • http://www.gorillawalker.com/intermediate-grammar-from-form-to-meaning-and-use-student-book.pdf
    • http://www.gorillawalker.com/first-strike-stability-deterrence-after-containment-contributions-in-military-studies.pdf
    • http://www.gorillawalker.com/score-reliability-contemporary-thinking-on-reliability-issues.pdf
    • http://www.gorillawalker.com/el-cuarto-de-las-muchachas-spanish-edition.pdf
    • http://www.gorillawalker.com/private-bodies-public-texts-race-gender-and-a-cultural-bioethics.pdf
    • http://www.gorillawalker.com/samuel-barber-remembered-a-centenary-tribute-eastman-studies-in-music.pdf
    • http://www.gorillawalker.com/lonely-planet-wales.pdf
    • http://www.gorillawalker.com/the-village-community-with-special-reference-to-the-origin-and.pdf
    • http://www.gorillawalker.com/inspector-logan-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/too-many-cats-level-k-we-both-read-level-k.pdf
    • http://www.gorillawalker.com/professor-grammar-s-punctuation-packets-fun-reproducible-learning-packets-that.pdf
    • http://www.gorillawalker.com/popular-culture-1900-1919-a-history-of-popular-culture.pdf
    • http://www.gorillawalker.com/nazis-in-pre-war-london-1930-150-1939-the-fate.pdf
    • http://www.gorillawalker.com/absolute-beginner-s-guide-to-minecraft-mods-programming-kindle-edition.pdf
    • http://www.gorillawalker.com/correspondence-of-william-shirley-governor-of-massachusetts-and-military-commander.pdf
    • http://www.gorillawalker.com/talon-kindle-edition.pdf
    • http://www.gorillawalker.com/cpt-2000-for-hospital-outpatient-services.pdf
    • http://www.gorillawalker.com/advanced-analytic-number-theory-l-functions-mathematical-surveys-monographs-mathematical.pdf
    • http://www.gorillawalker.com/smart-about-cities-visualising-the-challenge-for-21st-century-urbanism.pdf
    • http://www.gorillawalker.com/tea-time-board-buddies.pdf
    • http://www.gorillawalker.com/clean-eating-the-beginner-s-guide-to-the-benefits-of.pdf
    • http://www.gorillawalker.com/bill-o-reilly-s-legends-and-lies-the-real-west.pdf
    • http://www.gorillawalker.com/east-kalimantan-the-decline-of-a-commercial-aristocracy.pdf
    • http://www.gorillawalker.com/50-mba-essays-that-worked-volume-2-50-essays-that.pdf
    • http://www.gorillawalker.com/ultimate-yo-momma-jokes-the-expanded-pack-kindle-edition.pdf
    • http://www.gorillawalker.com/organize-a-party-create-an-event.pdf
    • http://www.gorillawalker.com/the-prevention-of-suicide-in-prison-cognitive-behavioural-approaches-advances.pdf
    • http://www.gorillawalker.com/begin-again-believe-again-embracing-the-courage-to-love-with.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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