Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd4204b596c3eddd…

MALICIOUS

PDF

44.7 KB Created: 2018-12-15 20:02:12 +03:00 Authoring application: LaTeX with hyperref package (via XeTeX 0.99992)
MD5: 0fbff77bbb62e68d9f1123e15d09321c SHA-1: 4be608bb00a678c613de4de0b00f8d738834c4d7 SHA-256: cd4204b596c3edddbb949b1413823654c929a6550c0ae55064e2c370759c6b54
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a significant number of external links to other PDF documents. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve the ranking of malicious sites. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/cosmos-culture-cultural-evolution-in-a-cosmic-context.pdf
    • http://www.gorillawalker.com/banaras-city-of-light.pdf
    • http://www.gorillawalker.com/el-arte-de-aprovechar-nuestras-faltas-pilares-spanish-edition.pdf
    • http://www.gorillawalker.com/a-bar-on-every-corner-sobering-up-in-a-tempting.pdf
    • http://www.gorillawalker.com/nobody-s-perfect-i-m-as-close-as-it-gets.pdf
    • http://www.gorillawalker.com/photosensitive-polyimides-fundamentals-and-applications.pdf
    • http://www.gorillawalker.com/dominican-republic-approaches-towards-a-sustainable-tourism-development.pdf
    • http://www.gorillawalker.com/buying-at-the-point-of-maximum-pessimism-six-value-investing.pdf
    • http://www.gorillawalker.com/international-handbook-of-universities-2009-20th-edition.pdf
    • http://www.gorillawalker.com/serve-and-learn-implementing-and-evaluating-service-learning-in-middle.pdf
    • http://www.gorillawalker.com/leadership-through-the-ages-a-collection-of-favorite-quotations.pdf
    • http://www.gorillawalker.com/pachelbel-s-canon-signature-series-original.pdf
    • http://www.gorillawalker.com/the-complementary-nature-bradford-books.pdf
    • http://www.gorillawalker.com/graphs-on-surfaces-and-their-applications.pdf
    • http://www.gorillawalker.com/hope-for-hashimoto-s.pdf
    • http://www.gorillawalker.com/jazz-clarinet-scales-book-levels-grades-1-5-abrsm-exam.pdf
    • http://www.gorillawalker.com/eyes-never-lie-the-story-of-cate-and-bella-friends.pdf
    • http://www.gorillawalker.com/gace-educational-leadership-flashcard-study-system-gace-test-practice-questions.pdf
    • http://www.gorillawalker.com/how-to-write-a-business-plan-quickstudy-business.pdf
    • http://www.gorillawalker.com/parachute-cord-craft-quick-simple-instructions-for-22-cool-projects.pdf
    • http://www.gorillawalker.com/selected-poems-poets.pdf
    • http://www.gorillawalker.com/worth-it-forbidden-men-book-6.pdf
    • http://www.gorillawalker.com/somewhere-safe-with-somebody-good-the-new-mitford-novel-a.pdf
    • http://www.gorillawalker.com/horse-of-a-different-color-reminiscenses-of-a-kansas-drover.pdf
    • http://www.gorillawalker.com/las-semillas-seeds-plantas-spanish-edition.pdf
    • http://www.gorillawalker.com/the-rise-of-the-hispanic-market-in-the-united-states.pdf
    • http://www.gorillawalker.com/ohio-driving-under-the-influence-law-2004.pdf
    • http://www.gorillawalker.com/major-disasters-it-s-a-fact.pdf
    • http://www.gorillawalker.com/sunstone-volume-1-ogn.pdf
    • http://www.gorillawalker.com/existentialism-basic-writings-kierkegaard-nietzsche-heidegger-sartre.pdf
    • http://www.gorillawalker.com/wild-trail-hiking-and-camping-adventure-outdoors.pdf
    • http://www.gorillawalker.com/secrets-of-the-serpent-in-search-of-the-sacred-past.pdf
    • http://www.gorillawalker.com/salad-cooking-of-large-thief-crispy-master-thief-1999-isbn.pdf
    • http://www.gorillawalker.com/chance-encounter-7-chance-encounter-series-book-7-an-alpha.pdf
    • http://www.gorillawalker.com/living-with-the-enemy.pdf
    • http://www.gorillawalker.com/the-home-based-bookstore-start-your-own-business-selling-used.pdf
    • http://www.gorillawalker.com/harry-potter-a-l-ecole-des-sorciers-mp3-cd-french.pdf
    • http://www.gorillawalker.com/veggietales-elementary-leaders-guide.pdf
    • http://www.gorillawalker.com/valentina-2-spanish-edition.pdf
    • http://www.gorillawalker.com/finite-mathematics-for-business-economics-life-sciences-and-social-sciences.pdf
    • http://www.gorillawalker.co
    • 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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