Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be6e3a1d2defcc7…

MALICIOUS

PDF

34.5 KB Created: 2020-01-10 17:23:19 +03:00 Authoring application: Adobe Acrobat 8.0 Combine Files (via Adobe PDF Library 5.0) First seen: 2021-06-20
MD5: 3c3c09cbb8c387cd82f17e3a2ca63672 SHA-1: 3c41b226153684196926a23830a8eb88e15d3298 SHA-256: 2be6e3a1d2defcc74c252db84c63268a0b4f1af1ced6959331134e52902007dc
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, primarily hosted on 'gorillawalker.com'. This technique is often used to distribute malicious content or to engage in SEO poisoning. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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/lung-cancer-a-puzzling-disease-an-article-from-medical-update.pdf In PDF document text
    • http://www.gorillawalker.com/refurbishment-manual-construction-manuals-englisch.pdfIn PDF document text
    • http://www.gorillawalker.com/fashion-s-world-cities-cultures-of-consumption-series.pdfIn PDF document text
    • http://www.gorillawalker.com/the-right-use-of-power-the-inner-art-of-business.pdfIn PDF document text
    • http://www.gorillawalker.com/den-forna-seden-vol-2-swedish-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/campana-y-guarnicion-memorias-de-un-militar-argentino-en-el.pdfIn PDF document text
    • http://www.gorillawalker.com/a-concise-history-of-brazil-cambridge-concise-histories.pdfIn PDF document text
    • http://www.gorillawalker.com/futures-options-and-swaps-instructor-s-manual.pdfIn PDF document text
    • http://www.gorillawalker.com/laser-angioplasty.pdfIn PDF document text
    • http://www.gorillawalker.com/improve-your-eyesight-with-eft-emotional-freedom-techniques.pdfIn PDF document text
    • http://www.gorillawalker.com/la-rosa-robada-books4pocket-romantica-spanish-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/the-apocryphal-acts-of-jesus-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/pharmacology-and-drug-administration-for-imaging-technologists-2e.pdfIn PDF document text
    • http://www.gorillawalker.com/an-introductory-course-in-functional-analysis-universitext.pdfIn PDF document text
    • http://www.gorillawalker.com/act-like-a-leader-think-like-a-leader.pdfIn PDF document text
    • http://www.gorillawalker.com/financial-capitalization-rate-tables-based-on-mortgage-equity-relationships-for.pdfIn PDF document text
    • http://www.gorillawalker.com/southern-horrors-women-and-the-politics-of-rape-and-lynching.pdfIn PDF document text
    • http://www.gorillawalker.com/perfect-phrases-for-icebreakers-hundreds-of-ready-to-use-phrases.pdfIn PDF document text
    • http://www.gorillawalker.com/consumer-behavior-buying-having-and-being.pdfIn PDF document text
    • http://www.gorillawalker.com/principles-of-bioinorganic-chemistry.pdfIn PDF document text
    • http://www.gorillawalker.com/if-anthology-2015.pdfIn PDF document text
    • http://www.gorillawalker.com/the-cambridge-economic-history-of-europe-vol-7-the-industrial.pdfIn PDF document text
    • http://www.gorillawalker.com/holt-pre-algebra-tarea-y-practica-spanish-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/el-arte-del-entrenamiento-mental-una-guia-para-el-rendimiento.pdfIn PDF document text
    • http://www.gorillawalker.com/biotechnology-genomics-and-bioinformatics-biotechnology-a-multi-volume-comprehensive-treatise.pdfIn PDF document text
    • http://www.gorillawalker.com/paul-oakenfold-the-authorised-biography.pdfIn PDF document text
    • http://www.gorillawalker.com/magna-grecia-greek-temples-of-sicily-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/by-various-stephen-sondheim-sweeney-todd-vocal-score-book-6.pdfIn PDF document text
    • http://www.gorillawalker.com/blue-jean-millionaire.pdfIn PDF document text
    • http://www.gorillawalker.com/illustrator-cs2-for-windows-macintosh.pdfIn PDF document text
    • http://www.gorillawalker.com/practical-handbook-of-ground-water-monitoring.pdfIn PDF document text
    • http://www.gorillawalker.com/the-politics-of-cultural-programming-in-public-spaces.pdfIn PDF document text
    • http://www.gorillawalker.com/beetle-conservation.pdfIn PDF document text
    • http://www.gorillawalker.com/soils-genesis-and-geomorphology.pdfIn PDF document text
    • http://www.gorillawalker.com/textile-structural-composites-composite-materials-series.pdfIn PDF document text
    • http://www.gorillawalker.com/beneath-the-tyrant-s-yoke-norwegian-resistance-to-the-german.pdfIn PDF document text
    • http://www.gorillawalker.com/guadalcanal-1942-43-america-s-first-victory-on-the-road.pdfIn PDF document text
    • http://www.gorillawalker.com/someone-would-have-talked.pdfIn PDF document text
    • http://www.gorillawalker.com/bad-boy-complete-series.pdfIn PDF document text
    • http://www.gorillawalker.com/self-determination-and-secession-in-africa-the-post-colonial-state.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

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