Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5414332ec228720…

MALICIOUS

PDF

47.6 KB Created: 2018-11-23 08:00:34 +03:00 Authoring application: Microsoft® Word 2010 (via Acrobat Distiller 11.0 (Windows))
MD5: 24de11d469378ba9edf4f256bfc0884f SHA-1: 65c2fb95dd6517ea02386294ba2e358458f7bcbc SHA-256: b5414332ec228720d27dec544fb5cfddd9c9ad7fa970ed2ce1e9f194eff63327
90 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links to external PDF files hosted on www.gorillawalker.com. This behavior is indicative of a link farm or SEO poisoning technique, where the goal is to manipulate search engine rankings or distribute content. While no malicious script was directly extracted, the sheer volume and nature of the links, combined with the ML classifier's high confidence, suggest a malicious intent, possibly to lure users to malicious sites or to distribute further malware disguised as legitimate documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8527

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/99-bible-word-searches.pdf
    • http://www.gorillawalker.com/an-introduction-to-peaf-pragmatic-enterprise-architecture-framework.pdf
    • http://www.gorillawalker.com/iphone-6-user-s-manual-tips-tricks-to-unleash-the.pdf
    • http://www.gorillawalker.com/go-chinese-go100-workbook-traditional-characters.pdf
    • http://www.gorillawalker.com/aux-baleares-guide-guides-bleus-a-french-edition.pdf
    • http://www.gorillawalker.com/partita-no-1-in-b-flat-major-kalmus-edition.pdf
    • http://www.gorillawalker.com/strategic-air-command-warbirds-illustrated-no-9.pdf
    • http://www.gorillawalker.com/rethinking-military-history.pdf
    • http://www.gorillawalker.com/the-complete-jewelry-making-course-principles-practice-and-techniques-a.pdf
    • http://www.gorillawalker.com/visions-notes-sem-1930-1934-v1.pdf
    • http://www.gorillawalker.com/my-essential-oils-recipe-journal.pdf
    • http://www.gorillawalker.com/chicken-soup-for-the-pet-lover-s-soul-stories-about.pdf
    • http://www.gorillawalker.com/the-paradise-myth-in-eighteenth-century-russia-utopian-patterns-in.pdf
    • http://www.gorillawalker.com/just-a-minute-the-best-of-2011.pdf
    • http://www.gorillawalker.com/bibliographie-karl-barth-band-2-veroffentlichungen-uber-karl-barth-teil.pdf
    • http://www.gorillawalker.com/classic-grand-prix-cars-the-front-engined-formula-1-era.pdf
    • http://www.gorillawalker.com/saving-your-marriage-how-to-love-staying-married-avoid-divorce.pdf
    • http://www.gorillawalker.com/the-devious-book-of-fumbles-crits-a-4th-edition-d.pdf
    • http://www.gorillawalker.com/composing-blues-for-jazz-performance.pdf
    • http://www.gorillawalker.com/security-and-defensive-democracy-in-israel-a-critical-approach-to.pdf
    • http://www.gorillawalker.com/counselling-skills-for-palliative-care.pdf
    • http://www.gorillawalker.com/facilitating-agricultural-trade-in-asia-and-the-pacific-studies-in.pdf
    • http://www.gorillawalker.com/america-the-litigious-the-death-of-personal-responsibility-essay-kindle.pdf
    • http://www.gorillawalker.com/effective-medium-theory-principles-and-applications-international-series-of-monographs.pdf
    • http://www.gorillawalker.com/romance-for-love-and-war-an-american-civil-war-romance.pdf
    • http://www.gorillawalker.com/strings-attached.pdf
    • http://www.gorillawalker.com/aprende-a-dibujar-gente-learn-how-to-draw-people-spanish.pdf
    • http://www.gorillawalker.com/aborigines-in-the-british-colonies-information-respecting-the-aborigines-in.pdf
    • http://www.gorillawalker.com/women-and-war-a-historical-encyclopedia-from-antiquity-to-the.pdf
    • http://www.gorillawalker.com/our-america-the-pilgrim-adventure.pdf
    • http://www.gorillawalker.com/crime-prevention-approaches-practices-and-evaluations.pdf
    • http://www.gorillawalker.com/dyadic-developmental-psychotherapy-essential-practices-and-methods.pdf
    • http://www.gorillawalker.com/the-m-m-s-brand-chocolate-candies-counting-board-book.pdf
    • http://www.gorillawalker.com/iscience-course-1-grade-6-florida-edition.pdf
    • http://www.gorillawalker.com/advanced-knife-skills-in-theory-and-practice-advanced-knife-skills.pdf
    • http://www.gorillawalker.com/wiley-s-english-spanish-spanish-english-dictionary-of-psychology-and.pdf
    • http://www.gorillawalker.com/house-vote-cancels-07-corporate-tax-kicker-legislature-the-move.pdf
    • http://www.gorillawalker.com/gamal-abdel-nasser-middle-east-leaders.pdf
    • http://www.gorillawalker.com/history-of-early-new-york-building-america-s-democracy.pdf
    • http://www.gorillawalker.com/central-zentral-thailand-provinz-city-street-map-8858584000069.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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