Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0597b8ba6944d9…

MALICIOUS

PDF

33.2 KB Created: 2019-08-03 20:30:17 +03:00 Authoring application: Adobe Acrobat 10.1 (via Adobe Acrobat 10.1 Paper Capture Plug-in) First seen: 2021-06-28
MD5: 9f7403a260e0629c8ca4d93a8acb44ef SHA-1: 94f80f19700ca30a17f6af218e33655d8ca05d03 SHA-256: 2f0597b8ba6944d9e795c8e352932a99525cd3fae65dc042fd2bb995403f46a8
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. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or to serve as a distribution point for other malicious content, potentially through a spearphishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8313

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/this-scheming-world-library-of-japanese-literature.pdf In PDF document text
    • http://www.gorillawalker.com/prayer-that-gets-results-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/the-alphabet-forwards-and-backwards-happy-reading-happy-learning-literacy.pdfIn PDF document text
    • http://www.gorillawalker.com/imperial-march-op-32-original-orchestra-full-score-a5341.pdfIn PDF document text
    • http://www.gorillawalker.com/othello-a-lyrical-drama-in-four-acts-vocal-score.pdfIn PDF document text
    • http://www.gorillawalker.com/the-curious-case-of-the-clockwork-man-burton-swinburne.pdfIn PDF document text
    • http://www.gorillawalker.com/calclabs-for-maple-for-stewart-s-multivariable-calculus-6th.pdfIn PDF document text
    • http://www.gorillawalker.com/open-the-door-to-your-heart-yaoi.pdfIn PDF document text
    • http://www.gorillawalker.com/paper-cut-an-exploration-into-the-contemporary-world-of-papercraft.pdfIn PDF document text
    • http://www.gorillawalker.com/national-outdoor-leadership-school-s-wilderness-guide.pdfIn PDF document text
    • http://www.gorillawalker.com/the-massachusetts-technology-development-corporation-mtdc-how-the-massachusetts-venture.pdfIn PDF document text
    • http://www.gorillawalker.com/souness-the-management-years-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/giving-legal-advice-an-adviser-s-handbook.pdfIn PDF document text
    • http://www.gorillawalker.com/the-complete-book-of-food-counts-8th-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/the-underground-guide-to-job-interviewing-a-quick-and-irreverent.pdfIn PDF document text
    • http://www.gorillawalker.com/food-for-thought-the-stories-behind-the-things-we-eat.pdfIn PDF document text
    • http://www.gorillawalker.com/the-world-in-play-portraits-of-a-victorian-concept.pdfIn PDF document text
    • http://www.gorillawalker.com/golf-the-cure-for-a-grumpy-old-man.pdfIn PDF document text
    • http://www.gorillawalker.com/the-abhorsen-chronicles-old-kingdom.pdfIn PDF document text
    • http://www.gorillawalker.com/chemistry-applied-to-the-manufacture-of-soap-and-candles-a.pdfIn PDF document text
    • http://www.gorillawalker.com/star-force-internecine-sf55-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/anadromes-athina-1900-1910-olympic-games-1906.pdfIn PDF document text
    • http://www.gorillawalker.com/existencilism-vol-1.pdfIn PDF document text
    • http://www.gorillawalker.com/how-to-master-the-art-of-selling.pdfIn PDF document text
    • http://www.gorillawalker.com/optimisation-of-industrial-processes-at-supervisory-level-application-to-control.pdfIn PDF document text
    • http://www.gorillawalker.com/ayurvedic-secrets-to-longevity-and-total-health.pdfIn PDF document text
    • http://www.gorillawalker.com/the-tempest-come-unto-these-piano-sheet-music.pdfIn PDF document text
    • http://www.gorillawalker.com/technology-and-the-american-way-of-war-since-1945.pdfIn PDF document text
    • http://www.gorillawalker.com/administrative-law-and-politics-cases-and-comments.pdfIn PDF document text
    • http://www.gorillawalker.com/catia-v5-workbook-release-17.pdfIn PDF document text
    • http://www.gorillawalker.com/the-deleted-world-poems.pdfIn PDF document text
    • http://www.gorillawalker.com/behavior-analysis-education-and-effective-schooling.pdfIn PDF document text
    • http://www.gorillawalker.com/modernism-and-tradition-in-ernest-hemingway-s-in-our-time.pdfIn PDF document text
    • http://www.gorillawalker.com/salon-and-spa-success-know-your-competition-become-the-best.pdfIn PDF document text
    • http://www.gorillawalker.com/script-facsimile-star-wars-episode-1-the-phantom-menace.pdfIn PDF document text
    • http://www.gorillawalker.com/liposuction-principles-and-practice.pdfIn PDF document text
    • http://www.gorillawalker.com/mummies-mile-4-first-chapter-book.pdfIn PDF document text
    • http://www.gorillawalker.com/human-resource-management-kohlhammer-edition-marketing-german-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/midnight-at-the-palace-my-life-as-a-fabulous-cockette.pdfIn PDF document text
    • http://www.gorillawalker.com/through-the-eyes-of-the-vikings-an-aerial-vision-of.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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