Malicious PDF — malware analysis report

Static analysis result for SHA-256 5df89a1c1362ebda…

MALICIOUS

PDF

32.7 KB Created: 2019-09-29 23:31:13 +03:00 Authoring application: AH XSL Formatter V6.1 MR1 for Linux64 : 6.1.6.12100 (via Antenna House PDF Output Library 6.1.420 (Linux64); modified using iText 2.1.7 by 1T3XT)
MD5: a66534c42e6cde3c6eb33b9a8ac53c66 SHA-1: 6be3057b7505fe5007463a8e48540798f37b3a37 SHA-256: 5df89a1c1362ebda0ee9b24fbb6b0293c8fbb9535f83878ae224e261930e0d65
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The primary attack pattern appears to be the distribution of numerous links, potentially to manipulate search engine rankings or to serve as a lure for further malicious activity.

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/new-perspectives-on-european-women-s-legal-history-routledge-research.pdf
    • http://www.gorillawalker.com/problem-of-the-week-grade-three-problem-solving-challenge-volume.pdf
    • http://www.gorillawalker.com/das-tagebuch-eines-mannes-von-f.pdf
    • http://www.gorillawalker.com/for-all-eternity-the-sommerville-novels-book-1.pdf
    • http://www.gorillawalker.com/fundamental-world-of-quantum-chemistry-a-tribute-to-the-memory.pdf
    • http://www.gorillawalker.com/media-and-the-ecological-crisis-routledge-research-in-cultural-and.pdf
    • http://www.gorillawalker.com/biomanagement-of-metal-contaminated-soils-environmental-pollution.pdf
    • http://www.gorillawalker.com/the-turkey-an-american-story-the-food-series.pdf
    • http://www.gorillawalker.com/mathematics-higher-level-for-the-ib-diploma-option-topic-9.pdf
    • http://www.gorillawalker.com/h3-in-the-battle-against-old-age.pdf
    • http://www.gorillawalker.com/daily-inspiration-for-the-purpose-driven-life-scriptures-and-reflections.pdf
    • http://www.gorillawalker.com/corresponding-with-carlos-a-biography-of-carlos-kleiber-kindle-edition.pdf
    • http://www.gorillawalker.com/fyodor-dostoevsky-bloom-s-biocritiques.pdf
    • http://www.gorillawalker.com/post-aus-floreana-mein-hotel-am-ende-der-welt-german.pdf
    • http://www.gorillawalker.com/the-fifteenth-ohio-volunteers-and-its-campaigns-war-of-1861.pdf
    • http://www.gorillawalker.com/jerusalem-delivered-an-english-prose-version.pdf
    • http://www.gorillawalker.com/lateral-puzzles.pdf
    • http://www.gorillawalker.com/anorexia-y-bulimia-anorexia-and-bulimia-trastornos-alimentarios-eating-disorders.pdf
    • http://www.gorillawalker.com/iso-3551-1-1992-rotary-core-diamond-drilling-equipment-system.pdf
    • http://www.gorillawalker.com/microcomputer-experimentation-with-the-intel-sdk-85.pdf
    • http://www.gorillawalker.com/thermomix-chocolate-decadence-illustrated-kindle-edition.pdf
    • http://www.gorillawalker.com/madinah-arabic-reader-book-1-islamic-children-s-books-on.pdf
    • http://www.gorillawalker.com/educators-online-preparing-today-s-teachers-for-tomorrow-s-digital.pdf
    • http://www.gorillawalker.com/a-birthday-cake-is-no-ordinary-cake.pdf
    • http://www.gorillawalker.com/ecstasy-and-other-designer-drug-dangers.pdf
    • http://www.gorillawalker.com/medical-assessment-of-fitness-to-dive.pdf
    • http://www.gorillawalker.com/numerical-methods-with-matlab-implementations-and-applications.pdf
    • http://www.gorillawalker.com/essentials-of-veterinary-anatomy-and-physiology.pdf
    • http://www.gorillawalker.com/uttarakhand.pdf
    • http://www.gorillawalker.com/public-relations-for-leisure-and-tourism-longman-leisure-management.pdf
    • http://www.gorillawalker.com/seven-pillars-of-wisdom-a-triumph.pdf
    • http://www.gorillawalker.com/the-pythagorean-theorem-the-story-of-its-power-and-beauty.pdf
    • http://www.gorillawalker.com/japonicavirus-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/many-mansions-of-rastafari-reasoning.pdf
    • http://www.gorillawalker.com/the-lion-s-whiskers-an-ethiopian-folktale.pdf
    • http://www.gorillawalker.com/california-condor-road-to-recovery.pdf
    • http://www.gorillawalker.com/naughty-babysitter-bundle-taboo-box-set-collection.pdf
    • http://www.gorillawalker.com/better-thinking-for-better-results.pdf
    • http://www.gorillawalker.com/identifying-selfhood-imagination-narrative-and-hermeneutics-in-the-thought-of.pdf
    • http://www.gorillawalker.com/all-about-hard-disk-recorders-an-introduction-to-the-creative.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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