Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d3c9cd30edc9296…

MALICIOUS

PDF

43.7 KB Created: 2018-11-14 22:16:38 +03:00 Authoring application: Adobe Illustrator CS3 (via Adobe PDF library 8.00)
MD5: 16cfe215d7fba76b8c6c393c88d335a1 SHA-1: 0293192a7d529f6e5b210c11b6baef71d12f1b93 SHA-256: 6d3c9cd30edc929608b5dfeeadd5d0af5adc125d75df282552e87a0e078f979c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which suggests a link farm or a redirection scheme. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. While no scripts were explicitly extracted, the structure of the PDF and the embedded URLs indicate an attempt to direct users to external, potentially malicious, content, likely as part of a phishing or malware distribution campaign.

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/conditionals-a-comprehensive-empirical-analysis-topics-in-english-linguistics-no.pdf
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    • http://www.gorillawalker.com/new-orleans-jazz-piano-solos-series-vol-21-paperback.pdf
    • http://www.gorillawalker.com/the-absolute-essentials-of-songwriting-success.pdf
    • http://www.gorillawalker.com/robert-burns-woodward-architect-and-artist-in-the-world-of.pdf
    • http://www.gorillawalker.com/m-s-all-del-domin-t-cnicas-avanzadas-spanish-edition.pdf
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    • http://www.gorillawalker.com/the-jihad-ultimatum.pdf
    • http://www.gorillawalker.com/outdoor-banner-vacation-bible-school-vbs-2014-jungle-safari-151.pdf
    • http://www.gorillawalker.com/my-dearly-beloved-wife-letters-from-france-and-italy-1841.pdf
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    • http://www.gorillawalker.com/the-united-states-making-a-new-nation-teacher-s-edition.pdf
    • http://www.gorillawalker.com/jacob-of-sarug-s-homily-on-the-transfiguration-of-our.pdf
    • http://www.gorillawalker.com/essentials-of-public-health.pdf
    • http://www.gorillawalker.com/analysis-of-motorcycle-exhaust-regular-testing-data-a-case-study.pdf
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    • http://www.gorillawalker.com/the-insistence-of-god-a-theology-of-perhaps-indiana-series.pdf
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    • http://www.gorillawalker.com/reg-harris-the-rise-and-fall-of-britain-s-greatest.pdf
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    • http://www.gorillawalker.com/america-s-founding-fathers-their-uncommon-wisdom-and-wit.pdf
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    • http://www.gorillawalker.com/commercial-ground-leases-pli-press-s-real-property-law-library.pdf
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    • http://www.gorillawalker.com/british-politics-a-very-short-introduction-very-short-introductions-2nd.pdf
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    • 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/