Malicious PDF — malware analysis report

Static analysis result for SHA-256 667fb02e523727a1…

MALICIOUS

PDF

41.0 KB Created: 2018-12-15 08:35:43 +03:00 Authoring application: Acrobat PDFMaker 9.0 for Word (via Acrobat Distiller 9.0.0 (Windows))
MD5: c653864835c8ace33175e40f902cdb78 SHA-1: 76fcead90e406d5c7c2ee4f824ef99152c847a01 SHA-256: 667fb02e523727a13ea8ffad0b6db9da6440768e1baac3f04909530da482cea8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on 'gorillawalker.com'. The ML classifier also flagged the document as malicious. The primary purpose appears to be SEO manipulation or distributing links to potentially malicious content, rather than a direct user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/agribusiness-management-challenges-opportunities-strategies.pdf
    • http://www.gorillawalker.com/the-flesh-cartel-season-2-fragmentation-volume-2.pdf
    • http://www.gorillawalker.com/conquering-pornography-overcoming-the-addiction.pdf
    • http://www.gorillawalker.com/it-s-not-summer-without-you-summer-series-book-2.pdf
    • http://www.gorillawalker.com/art-of-palestinian-embroidery.pdf
    • http://www.gorillawalker.com/paleo-freezer-recipes-and-paleo-indian-recipes-2-book-combo.pdf
    • http://www.gorillawalker.com/wortschatz-und-textproduktion-wie-lassen-sich-schreibkompetenzen-von-hauptsch-lern.pdf
    • http://www.gorillawalker.com/my-little-nest-of-heavenly-blue-frasquita-serenade-1922-sheet.pdf
    • http://www.gorillawalker.com/grain-brain-top-50-facts-countdown.pdf
    • http://www.gorillawalker.com/hull-east-1928-yorkshire-sheet-240-03b-old-o-s.pdf
    • http://www.gorillawalker.com/costa-rica-guias-del-buen-viajero-spanish-edition.pdf
    • http://www.gorillawalker.com/romeo-and-juliet-the-pelican-shakespeare.pdf
    • http://www.gorillawalker.com/the-origin-of-radar-praeger-security-international.pdf
    • http://www.gorillawalker.com/memoirs-of-mrs-ruth-patten-of-hartford-conn-with-letters.pdf
    • http://www.gorillawalker.com/brownies-blondies-and-bar-cookies.pdf
    • http://www.gorillawalker.com/the-adventures-of-monka-the-monkey-kindle-edition.pdf
    • http://www.gorillawalker.com/partners-healing-from-his-addiction.pdf
    • http://www.gorillawalker.com/skud.pdf
    • http://www.gorillawalker.com/hydroenergy-and-its-energy-potential-kindle-edition.pdf
    • http://www.gorillawalker.com/spinning-for-softness-and-speed.pdf
    • http://www.gorillawalker.com/el-pequeno-libro-de-la-medicina-energetica-coleccion-salud-y.pdf
    • http://www.gorillawalker.com/human-population-genetics.pdf
    • http://www.gorillawalker.com/songs-of-the-1970-s-the-decade-series.pdf
    • http://www.gorillawalker.com/building-troyes-cathedral-the-late-gothic-campaigns.pdf
    • http://www.gorillawalker.com/discover-god-s-word-52-bible-lessons-for-ages-3.pdf
    • http://www.gorillawalker.com/kaplan-gmat-2010-premier-live-online-kaplan-gmat-premier-live.pdf
    • http://www.gorillawalker.com/mein-mann-der-fremde-und-ich-3-german-edition.pdf
    • http://www.gorillawalker.com/comodoro-valfierno-spanish-edition.pdf
    • http://www.gorillawalker.com/basic-theory-of-ordinary-differential-equations-universitext.pdf
    • http://www.gorillawalker.com/the-captured-a-true-story-of-abduction-by-indians-on.pdf
    • http://www.gorillawalker.com/corporate-legal-departments-vol-1-2.pdf
    • http://www.gorillawalker.com/it-s-okay-it-s-paleo-kindle-edition.pdf
    • http://www.gorillawalker.com/health-online-how-to-find-health-information-support-groups-and.pdf
    • http://www.gorillawalker.com/practical-astrology-self-transformation-through-self-knowledge-kabbalah-tarot-and.pdf
    • http://www.gorillawalker.com/itty-bitty-kitty-guide-to-the-lighthouses-of-georgia-kindle.pdf
    • http://www.gorillawalker.com/brescia-bugatti.pdf
    • http://www.gorillawalker.com/cranes-machines-that-build.pdf
    • http://www.gorillawalker.com/campagne-de-russie-1812-primary-source-edition-french-edition.pdf
    • http://www.gorillawalker.com/dakota-s-cowboys-dakota-heat-3-siren-publishing-menage-amour.pdf
    • http://www.gorillawalker.com/my-karate-odyssey-a-six-month-journey-across-north-central.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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