Malicious PDF — malware analysis report

Static analysis result for SHA-256 6722764358573f99…

MALICIOUS

PDF

42.8 KB Created: 2018-11-30 20:56:24 +03:00 Authoring application: QuarkXPress¢â: LaserWriter 8 KH-8.7.1 (via Acrobat Distiller 4.05 for Macintosh)
MD5: 9fa74f80e5a828a8cda9f2e0e3bbd705 SHA-1: 2b264e1600007ac7a10e73fb04256e8dfeee286d SHA-256: 6722764358573f997966743d29ab21241bb82a46f25571351cb3d5c5ab8cf5b2
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, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/totally-captivated-side-story-3-diary-of-sanchul.pdf
    • http://www.gorillawalker.com/seasonal-sector-trades-2014-q2-strategies-kindle-edition.pdf
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    • http://www.gorillawalker.com/enrichment-math-reading-grade-5-mcgraw-hill-learning-materials-spectrum.pdf
    • http://www.gorillawalker.com/the-famous-gardner-s-seafoods-ski-show.pdf
    • http://www.gorillawalker.com/30-day-gmat-mastery-workbook.pdf
    • http://www.gorillawalker.com/tacitus-dialogus-de-oratoribus.pdf
    • http://www.gorillawalker.com/science-explorers-human-body.pdf
    • http://www.gorillawalker.com/photoshop-restoration-and-retouching-macintosh-library.pdf
    • http://www.gorillawalker.com/favorite-dutch-oven-recipes.pdf
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    • http://www.gorillawalker.com/days-of-slavery-black-history.pdf
    • http://www.gorillawalker.com/ebay-selling-explained-how-to-take-your-ebay-sales-to.pdf
    • http://www.gorillawalker.com/securities-regulation-analysis-and-skills-series.pdf
    • http://www.gorillawalker.com/argentina-guia-turistica-tourist-guide-spanish-edition.pdf
    • http://www.gorillawalker.com/i-wish-i-had-a-computer-that-makes-waffles-teaching.pdf
    • http://www.gorillawalker.com/kjv-adult-bible-class-151-spring-2014-standard-lesson-quarterly.pdf
    • http://www.gorillawalker.com/broken-and-screwed-bs-series.pdf
    • http://www.gorillawalker.com/coal-power-technologies-explained-simply-energy-technologies-explained-simply-volume.pdf
    • http://www.gorillawalker.com/beauty-with-healthy-eating-jelly-health-law-1986-isbn-4062026384.pdf
    • http://www.gorillawalker.com/faces-of-nationalism-janus-revisited.pdf
    • http://www.gorillawalker.com/an-introduction-to-relativistic-quantum-field-theory-dover-books-on.pdf
    • http://www.gorillawalker.com/the-universe-an-illustrated-history-of-astronomy-ponderables.pdf
    • http://www.gorillawalker.com/behind-the-wire-prisoner-of-war-camps-on-wanstead-flats.pdf
    • http://www.gorillawalker.com/lewis-and-clark-territory.pdf
    • http://www.gorillawalker.com/100-years-war-poitiers-1356.pdf
    • http://www.gorillawalker.com/napoleon-s-army-in-russia-the-illustrated-memoirs-of-albrecht.pdf
    • http://www.gorillawalker.com/green-innovation-in-china-china-s-wind-power-industry-and.pdf
    • http://www.gorillawalker.com/seven-deadly-sins-1-pride-2-avarice-3-luxury-4.pdf
    • http://www.gorillawalker.com/physics-and-philosophy-volume-4-philosophical-papers.pdf
    • http://www.gorillawalker.com/help-i-m-in-love-with-a-narcissist-narcissist-personality.pdf
    • http://www.gorillawalker.com/eight-ballets-and-madrigals-1598-primary-source-edition.pdf
    • http://www.gorillawalker.com/the-universe-21st-century-science.pdf
    • http://www.gorillawalker.com/louisiana-voyages-the-travel-writings-of-catharine-cole.pdf
    • 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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