Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e6f3c28d9a3ab85…

MALICIOUS

PDF

34.2 KB Created: 2020-01-10 17:21:11 +03:00 Authoring application: TeX (via dvipdfmx)
MD5: 4de561c0674a693f2bc5eddd35baa159 SHA-1: 1fdb436682b10dba59dacc6cee3e5658c4c9edc0 SHA-256: 2e6f3c28d9a3ab8562d0b361b86eb9351b6a5dc87871b96578014d7be0a298df
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of external links, indicating a potential SEO manipulation or content distribution scheme. The heuristic 'PDF_SEO_LINK_FARM' specifically calls out the mass external PDF link farm. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure. The primary IOCs are the numerous URLs embedded within the document.

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/killer-samurai-sudoku-100-puzzles.pdf
    • http://www.gorillawalker.com/all-the-blues-chords-you-ll-ever-need.pdf
    • http://www.gorillawalker.com/casenote-legal-breifs-contracts-keyed-to-farnsworth-sanger-cohen-brooks.pdf
    • http://www.gorillawalker.com/portable-digital-microscope-atlas-of-ceramic-pastes-components-texture-and.pdf
    • http://www.gorillawalker.com/the-gift-of-age-wit-and-wisdom-information-and-inspiration.pdf
    • http://www.gorillawalker.com/a-year-of-seasons-cycles-in-nature.pdf
    • http://www.gorillawalker.com/algebra-2-student-works.pdf
    • http://www.gorillawalker.com/save-proceedings-international-conference-held-may-31-june-3-1987.pdf
    • http://www.gorillawalker.com/ten-days-that-shook-the-world-penguin-classics.pdf
    • http://www.gorillawalker.com/relapse-prevention-counseling-workbook-practical-exercises-for-managing-high-risk.pdf
    • http://www.gorillawalker.com/swot-commercial-and-consumer-law.pdf
    • http://www.gorillawalker.com/the-white-road-journey-into-an-obsession.pdf
    • http://www.gorillawalker.com/piggyback.pdf
    • http://www.gorillawalker.com/adventures-in-touring-oregon-recreation-sleeping-eating-camping.pdf
    • http://www.gorillawalker.com/femininity-in-flight-a-history-of-flight-attendants-radical-perspectives.pdf
    • http://www.gorillawalker.com/muerte-a-los-coches-ebook-epub-gran-angular-spanish-edition.pdf
    • http://www.gorillawalker.com/a-tree-is-a-tree.pdf
    • http://www.gorillawalker.com/the-bat-a-harry-hole-novel-1-kindle-edition.pdf
    • http://www.gorillawalker.com/pragmatic-scala-create-expressive-concise-and-scalable-applications.pdf
    • http://www.gorillawalker.com/flying-lightness-promises-for-structural-elegance.pdf
    • http://www.gorillawalker.com/the-cholesterol-myths-exposing-the-fallacy-that-saturated-fat-and.pdf
    • http://www.gorillawalker.com/no-eat-not-food-moonbeam-children-s-award.pdf
    • http://www.gorillawalker.com/nielyv-saga-vampiros-luminish-n-2-spanish-edition.pdf
    • http://www.gorillawalker.com/men-doing-feminism-thinking-gender.pdf
    • http://www.gorillawalker.com/itunes-and-icloud-for-iphone-ipad-ipod-touch-absolute-beginner.pdf
    • http://www.gorillawalker.com/six-sigma-kompakt-und-praxisnah-prozessverbesserung-effizient-und-erfolgreich-implementieren.pdf
    • http://www.gorillawalker.com/el-libro-del-embarazo-pregnancy-book-spanish-edition.pdf
    • http://www.gorillawalker.com/sanshiro-a-novel-michigan-classics-in-japanese-studies.pdf
    • http://www.gorillawalker.com/the-dice-game-of-shiva-how-consciousness-creates-the-universe.pdf
    • http://www.gorillawalker.com/so-this-is-love-eden-jude-and-spencer-story-book.pdf
    • http://www.gorillawalker.com/his-one-and-only-50-loving-states-volume-6.pdf
    • http://www.gorillawalker.com/the-infectious-diseases-of-domestic-animals-with-special-reference-to.pdf
    • http://www.gorillawalker.com/healthy-eating-during-chemotherapy.pdf
    • http://www.gorillawalker.com/plant-breeding-and-biotechnology-societal-context-and-the-future-of.pdf
    • http://www.gorillawalker.com/the-champagne-taste-beer-budget-cookbook.pdf
    • http://www.gorillawalker.com/falling-skies-volume-2-the-battle-of-fitchburg.pdf
    • http://www.gorillawalker.com/sam-houston-a-biography-of-the-father-of-texas.pdf
    • http://www.gorillawalker.com/rituals-of-power-rebellion-the-carnival-tradition-in-trinidad-tobago.pdf
    • http://www.gorillawalker.com/elite-sport-and-sport-for-all-bridging-the-two-cultures.pdf
    • http://www.gorillawalker.com/java-pageant-impressions-from-the-1930-s.pdf
    • http://www.gorillawalker.com/ten-days-that-shook-
    • 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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