Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9a8e6a267b30e04…

MALICIOUS

PDF

43.6 KB Created: 2019-01-06 08:14:50 +03:00 Authoring application: - (via Acrobat Distiller 15.0 (Windows))
MD5: a1a53f214d1e897559d958515fde1684 SHA-1: 5a74c837feee083d96146c9dabd6b4cf760ffe6b SHA-256: d9a8e6a267b30e04f45d97ec47f92f82e6da23da62effbfa41bcd822c72ba536
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a large number of embedded external links, indicating a link farm or SEO abuse. The primary attack pattern appears to be the distribution of these links, likely to manipulate search engine rankings or lead users to malicious content. No scripts were extracted, and the document body was unreadable, limiting further analysis.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/el-laberinto-del-minotauro-labyrinth-of-the-minotaur-leyendas-negras.pdf
    • http://www.gorillawalker.com/radical-prototypes-allan-kaprow-and-the-invention-of-happenings.pdf
    • http://www.gorillawalker.com/coherence-in-high-temperature-superconductors-tel-aviv-israel-1-3.pdf
    • http://www.gorillawalker.com/ajuste-de-cuentas-c-mo-controlar-con-xito-tu-econom.pdf
    • http://www.gorillawalker.com/remarkable-luminous-phenomena-in-nature-a-catalog-of-geophysical-anomalies.pdf
    • http://www.gorillawalker.com/home-the-art-of-effortless-design.pdf
    • http://www.gorillawalker.com/xml-pocket-consultant.pdf
    • http://www.gorillawalker.com/photography-lighting-home-studio-setting-up-your-own-home-studio.pdf
    • http://www.gorillawalker.com/the-runner-s-edge.pdf
    • http://www.gorillawalker.com/steps-to-literacy-step-5.pdf
    • http://www.gorillawalker.com/understanding-the-sacraments-holy-orders-understanding-the-sacraments-series.pdf
    • http://www.gorillawalker.com/operations-management-a-modern-approach.pdf
    • http://www.gorillawalker.com/chaka-african-writers.pdf
    • http://www.gorillawalker.com/the-soccer-diaries-an-american-146-s-thirty-year-pursuit.pdf
    • http://www.gorillawalker.com/the-father-made-in-sweden-part-i.pdf
    • http://www.gorillawalker.com/art-and-science-of-dental-caries-research.pdf
    • http://www.gorillawalker.com/determining-project-requirements-second-edition-mastering-the-babok-and-the.pdf
    • http://www.gorillawalker.com/mamy-wata-and-the-monster-english-bengali-veronique-tadjo.pdf
    • http://www.gorillawalker.com/seeing-krishna-in-america-the-hindu-bhakti-tradition-of-vallabhacharya.pdf
    • http://www.gorillawalker.com/optimized-asip-synthesis-from-architecture-description-language-models.pdf
    • http://www.gorillawalker.com/les-mille-et-un-fant-mes-la-femme-au-collier.pdf
    • http://www.gorillawalker.com/leopard-gecko-pet-expert.pdf
    • http://www.gorillawalker.com/fair-food-stories-from-a-movement-changing-the-world.pdf
    • http://www.gorillawalker.com/inspired-to-write-student-s-book-readings-and-tasks-to.pdf
    • http://www.gorillawalker.com/the-problem-of-sovereignty-in-the-later-middle-ages-the.pdf
    • http://www.gorillawalker.com/my-daddy-is-deployed.pdf
    • http://www.gorillawalker.com/primer-for-patients-with-lupus-erythematosus.pdf
    • http://www.gorillawalker.com/cat-diseases-and-clinical-management-2-volume-set.pdf
    • http://www.gorillawalker.com/robin-robertson-s-vegan-without-borders-easy-everyday-meals-from.pdf
    • http://www.gorillawalker.com/women-scientists-reflections-challenges-and-breaking-boundaries.pdf
    • http://www.gorillawalker.com/growing-vegetables-is-fun.pdf
    • http://www.gorillawalker.com/right-to-the-top-port-hope-simpson-mysteries-book-7.pdf
    • http://www.gorillawalker.com/high-assurance-services-computing.pdf
    • http://www.gorillawalker.com/inglenook-cook-book.pdf
    • http://www.gorillawalker.com/write-in-narcissist-habit-logbook-blank-books-you-can-write.pdf
    • http://www.gorillawalker.com/black-folklore-and-the-politics-of-racial-representation-margaret-walker.pdf
    • http://www.gorillawalker.com/getting-paid-youth-crime-and-work-in-the-inner-city.pdf
    • http://www.gorillawalker.com/medieval-women-in-their-communities.pdf
    • http://www.gorillawalker.com/mosby-s-textbook-for-nursing-assistants-pageburst-e-book-on.pdf
    • http://www.gorillawalker.com/bitcoin-mining-step-by-step-bitcoin-step-by-step-book.pdf
    • http://www.gorillawalker.com/home-the-art-of-effortless-desig
    • 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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