Malicious PDF — malware analysis report

Static analysis result for SHA-256 e52de23e86812fc7…

MALICIOUS

PDF

43.7 KB Created: 2019-03-16 09:00:39 +03:00 Authoring application: - (via htmldoc 1.8.27 Copyright 1997-2006 Easy Software Products, All Rights Reserved.)
MD5: 9c99d3c07d85504b2f91ca7bc6a931e4 SHA-1: 249a43385e928550bbdc46678d763d4ecb0c062d SHA-256: e52de23e86812fc72e84a2e81624368746b9b1e8d318c7074790224b55180615
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents, primarily hosted on www.gorillawalker.com. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/getting-beyond-i-like-the-book-creating-space-for-critical.pdf
    • http://www.gorillawalker.com/beyond-the-pasta-recipes-language-and-life-with-an-italian.pdf
    • http://www.gorillawalker.com/what-s-a-witch-to-do-a-midnight-magic-mystery.pdf
    • http://www.gorillawalker.com/the-priesthood-understanding-man-s-purpose-in-god-s-original.pdf
    • http://www.gorillawalker.com/robert-schumann-german-edition.pdf
    • http://www.gorillawalker.com/island-english-for-micronesia-guide.pdf
    • http://www.gorillawalker.com/sizing-in-clothing-woodhead-publishing-series-in-textiles.pdf
    • http://www.gorillawalker.com/the-spirit-of-vatican-ii-western-european-progressive-catholicism-in.pdf
    • http://www.gorillawalker.com/red-army-general-leading-britain-s-biggest-hooligan-firm.pdf
    • http://www.gorillawalker.com/programmable-digital-signal-processors-architecture-programming-and-applications-signal-processing.pdf
    • http://www.gorillawalker.com/five-days-in-skye-a-novel-macdonald-family-series.pdf
    • http://www.gorillawalker.com/the-real-professor-higgins-the-life-and-career-of-daniel.pdf
    • http://www.gorillawalker.com/oxford-international-primary-maths-primary-4-11-student-workbook-3.pdf
    • http://www.gorillawalker.com/head-s-broadcasting-in-america-a-survey-of-electronic-media.pdf
    • http://www.gorillawalker.com/hunters-the-woodmen-chronicles-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/timed-readings-plus-in-science-book-7.pdf
    • http://www.gorillawalker.com/solutions-of-the-examples-in-hall-and-knight-s-elementary.pdf
    • http://www.gorillawalker.com/alaska-by-cruise-ship-8th-edition.pdf
    • http://www.gorillawalker.com/database-systems-introduction-to-databases-and-data-warehouses.pdf
    • http://www.gorillawalker.com/101-tragedies-of-enrique-metinides-hardcover.pdf
    • http://www.gorillawalker.com/a-return-to-common-sense.pdf
    • http://www.gorillawalker.com/vectors-matrices-and-c-code-download-pdf-digital.pdf
    • http://www.gorillawalker.com/king-kong-coloring-and-activity-book-and-crayons.pdf
    • http://www.gorillawalker.com/charles-baudelaire-paris-blues-poems-in-prose-le-spleen-de.pdf
    • http://www.gorillawalker.com/skinnybones.pdf
    • http://www.gorillawalker.com/jesu-joy-of-man-s-desiring-kindle-edition.pdf
    • http://www.gorillawalker.com/captive-dreams-berkley-sensation.pdf
    • http://www.gorillawalker.com/low-calorie-fat-healthy-lunch-recipes-discover-new-healthy-lunch.pdf
    • http://www.gorillawalker.com/a-fatal-friendship-alexander-hamilton-and-aaron-burr.pdf
    • http://www.gorillawalker.com/cliff-ecology-pattern-and-process-in-cliff-ecosystems-cambridge-studies.pdf
    • http://www.gorillawalker.com/the-painter-in-oil-a-complete-treatise-on-the-principles.pdf
    • http://www.gorillawalker.com/selecting-training-methods-competent-trainer-s-toolkit.pdf
    • http://www.gorillawalker.com/everything-to-gain-making-the-most-of-the-rest-of.pdf
    • http://www.gorillawalker.com/mathematical-analysis-of-physical-problems-dover-books-on-physics.pdf
    • http://www.gorillawalker.com/peter-maxwell-davies-strathclyde-concerto-no-8-bassoon-piano.pdf
    • http://www.gorillawalker.com/are-we-there-yet-and-99-other-reasons-not-to.pdf
    • http://www.gorillawalker.com/we-have-your-girl.pdf
    • http://www.gorillawalker.com/the-uses-of-literacy-media-communication-and-culture-in-america.pdf
    • http://www.gorillawalker.com/the-consumer-in-public-services-choice-values-and-difference-paperback.pdf
    • http://www.gorillawalker.com/james-mcgill-of-montreal.pdf
    • http://www.gorillawalker.com/the-priesthood-understanding-man-s-purpose-in
    • 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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