Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c45872193bab3a5…

MALICIOUS

PDF

42.4 KB Created: 2018-11-21 20:53:02 +03:00 Authoring application: Adobe Acrobat 7.0 (via Adobe Acrobat 7.0 Image Conversion Plug-in)
MD5: 5fa4c83917542f17233ac167825703ad SHA-1: 92205f10d8b1f39e8bb20f7a8fbd6e638a56e083 SHA-256: 2c45872193bab3a51d6458a27cc436a5a0acf2fd1602001b07feee24175838e4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample. The primary attack pattern observed is the distribution of numerous links to external PDF documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/top-secret-secrets-to-a-successful-doctor-visit-top-3.pdf
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    • http://www.gorillawalker.com/the-genius-of-venice-piazza-san-marco-and-the-making.pdf
    • http://www.gorillawalker.com/practical-guide-to-fantasy-art-the-fantasy-art-techniques-of.pdf
    • http://www.gorillawalker.com/l-estro-armonico-for-4-violins-2-viola-violoncello-op3.pdf
    • http://www.gorillawalker.com/crown-for-a-cure.pdf
    • http://www.gorillawalker.com/la-mort-d-oph-lie-h-92-arrangement-for-soprano.pdf
    • http://www.gorillawalker.com/the-unilateral-presidency-and-the-news-media-the-politics-of.pdf
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    • http://www.gorillawalker.com/strong-democracy-participatory-politics-for-a-new-age.pdf
    • http://www.gorillawalker.com/i-ll-tell-you-a-story-i-ll-sing-you.pdf
    • http://www.gorillawalker.com/holt-algebra-1-virginia-test-prep-workbook-algebra-1.pdf
    • http://www.gorillawalker.com/understanding-digital-subscriber-line-technology.pdf
    • http://www.gorillawalker.com/cowboy-rescue-bear-county-4-siren-publishing-the-lynn-hagen.pdf
    • http://www.gorillawalker.com/enterprise-search-101-success-secrets-101-most-asked-questions-on.pdf
    • http://www.gorillawalker.com/long-range-casimir-forces-theory-and-recent-experiments-on-atomic.pdf
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    • http://www.gorillawalker.com/i-still-love-you.pdf
    • http://www.gorillawalker.com/exogene-subterrene-war-book-2.pdf
    • http://www.gorillawalker.com/basic-econometrics-4th-fourth-edition.pdf
    • http://www.gorillawalker.com/reactive-systems-modelling-specification-and-verification.pdf
    • http://www.gorillawalker.com/origami-activities-asian-arts-and-crafts-for-creative-kids-kindle.pdf
    • http://www.gorillawalker.com/introduction-to-aesthetics.pdf
    • http://www.gorillawalker.com/the-letters-of-general-richard-s-ewell-stonewall-s-successor.pdf
    • http://www.gorillawalker.com/kaplan-usmle-step-2-ck-lecture-notes-and-bonus-books.pdf
    • http://www.gorillawalker.com/inverse-problems-of-mathematical-physics.pdf
    • http://www.gorillawalker.com/fundamentals-of-analog-circuits-second-edition-hardcover.pdf
    • http://www.gorillawalker.com/tutus-aren-t-my-style.pdf
    • http://www.gorillawalker.com/old-believers-and-the-world-of-antichrist-vyg-community-and.pdf
    • http://www.gorillawalker.com/iso-14918-1998-thermal-spraying-approval-testing-of-thermal-sprayers.pdf
    • http://www.gorillawalker.com/a-quilt-and-a-home.pdf
    • http://www.gorillawalker.com/quantitative-methods-in-aquatic-ecotoxicology-advances-in-trace-substances-research.pdf
    • http://www.gorillawalker.com/how-to-shoot-cr
    • 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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