Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1651b93834c9408…

MALICIOUS

PDF

42.7 KB Created: 2018-12-14 10:20:46 +03:00 Authoring application: QuarkXPress¢â: LaserWriter 8 KH-8.7.1 (via Acrobat Distiller 4.05 for Macintosh)
MD5: 536b24475583bd1f624ce2f2cdaca40c SHA-1: 354b118960bd6015763969981e7b381bf1a3f521 SHA-256: c1651b93834c9408ca5216a2b3d5e897ddd65984c2a43d7d0e2bd7580c5cf23e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded external links, primarily pointing to PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic or distribute potentially harmful content through deceptive means. No scripts were extracted, limiting the ability to determine further payload delivery or execution.

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/help-for-adolescent-males-with-sexual-behavior-problems-a-cognitive.pdf
    • http://www.gorillawalker.com/e-management.pdf
    • http://www.gorillawalker.com/ringside-reflections.pdf
    • http://www.gorillawalker.com/vietnam-air-rescues.pdf
    • http://www.gorillawalker.com/powerboater-s-guide-to-electrical-systems-maintenace-troubleshooting-and-improvements.pdf
    • http://www.gorillawalker.com/child-health-a-population-perspective.pdf
    • http://www.gorillawalker.com/animal-rights-poetry-25-inspirational-animal-poems-vol-1-kindle.pdf
    • http://www.gorillawalker.com/electrons-in-chemical-reactions-first-principles.pdf
    • http://www.gorillawalker.com/democratic-governance-in-northeast-asia-a-human-centred-approach-to.pdf
    • http://www.gorillawalker.com/the-nineteenth-century-german-lied-hardcover.pdf
    • http://www.gorillawalker.com/love-live-and-share.pdf
    • http://www.gorillawalker.com/society-seductress-society-girls-book-2.pdf
    • http://www.gorillawalker.com/montrose-for-covenant-and-king.pdf
    • http://www.gorillawalker.com/poking-a-dead-frog-conversations-with-today-146-s-top.pdf
    • http://www.gorillawalker.com/novel-discoveries-quotes-from-great-works-on-men-women-romantic.pdf
    • http://www.gorillawalker.com/star-of-the-show-violet-visions.pdf
    • http://www.gorillawalker.com/charles-d-redwine-state-revenue-commissioner-mayor-and-council-of.pdf
    • http://www.gorillawalker.com/jumbo-ukulele-songbook.pdf
    • http://www.gorillawalker.com/the-vietnam-antiwar-movement-in-american-history.pdf
    • http://www.gorillawalker.com/celluloid-ceiling-women-film-directors-breaking-through.pdf
    • http://www.gorillawalker.com/kentucky-moonshine.pdf
    • http://www.gorillawalker.com/zweisprachiges-kinderbuch-in-deutsch-und-italienisch-schwein-maiale-mit-spa.pdf
    • http://www.gorillawalker.com/abu-hassan-j-106-overture-oboe-1-and-2-parts.pdf
    • http://www.gorillawalker.com/a-healing-conversation-how-healing-happens.pdf
    • http://www.gorillawalker.com/the-british-bus-story-late-seventies-the-calm-before-the.pdf
    • http://www.gorillawalker.com/numerical-control-mathematics-and-applications-wiley-series-in-computing.pdf
    • http://www.gorillawalker.com/mystery-you-write-it.pdf
    • http://www.gorillawalker.com/young-women-in-china.pdf
    • http://www.gorillawalker.com/linear-algebra-study-guide.pdf
    • http://www.gorillawalker.com/the-six-sigma-performance-handbook-a-statistical-guide-to-optimizing.pdf
    • http://www.gorillawalker.com/complete-guide-to-dumbbell-training-a-scientific-approach.pdf
    • http://www.gorillawalker.com/mindful-teaching-and-learning-developing-a-pedagogy-of-well-being.pdf
    • http://www.gorillawalker.com/pa-38-tomahawk-a-pilot-s-guide.pdf
    • http://www.gorillawalker.com/medical-computer-vision-recognition-techniques-and-applications-in-medical-imaging.pdf
    • http://www.gorillawalker.com/100-buttercream-flowers-the-complete-step-by-step-guide-to.pdf
    • http://www.gorillawalker.com/by-anne-kostick-good-clean-jokes-3650-jokes-puns-and.pdf
    • http://www.gorillawalker.com/johann-strauss-the-end-of-an-era-a-da-capo.pdf
    • http://www.gorillawalker.com/stretching-german-edition-stretching-f.pdf
    • http://www.gorillawalker.com/explosive-games-the-holloway-sagas-volume-8.pdf
    • http://www.gorillawalker.com/temas-de-salud-espanol-fines-especificos-spanish-specific-purposes-spanish.pdf
    • http://www.gorillawal
    • 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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