Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30f2747f3e89273…

MALICIOUS

PDF

43.4 KB Created: 2018-11-23 08:06:20 +03:00 Authoring application: Adobe InDesign CC (Macintosh) (via Adobe PDF Library 10.0.1)
MD5: 3bd391a5781b4eab94c87934ce6ee434 SHA-1: 996783550198f762a988d14a181276f0b46e867c SHA-256: e30f2747f3e89273982d9edc7ee6290f5ce7fe3bcd812719796524ad97195a97
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, specifically to PDF files hosted on www.gorillawalker.com. This technique is often used for SEO poisoning or to distribute further malicious content, making the primary attack pattern a lure to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/the-rys-chronicles-box-set-the-complete-series.pdf
    • http://www.gorillawalker.com/neonatal-certification-review-for-the-ccrn-and-rnc-high-risk.pdf
    • http://www.gorillawalker.com/complete-guide-to-home-video.pdf
    • http://www.gorillawalker.com/italy-adriatic-coast-and-umbria-no-6-geocenter-euro-map.pdf
    • http://www.gorillawalker.com/growing-wings-on-the-way-systems-thinking-for-messy-situations.pdf
    • http://www.gorillawalker.com/luz-sobre-el-pranayama-spanish-edition.pdf
    • http://www.gorillawalker.com/hudson-bay.pdf
    • http://www.gorillawalker.com/time-keeper-2-child-of-tomorrow-the-timeways-trilogy-kindle.pdf
    • http://www.gorillawalker.com/greek-and-roman-slavery-routledge-sourcebooks-for-the-ancient-world.pdf
    • http://www.gorillawalker.com/core-components-of-dialectical-behaviour-therapy-conducting-a-comprehensive-behavioural.pdf
    • http://www.gorillawalker.com/inside-disney-s-a-christmas-carol-disney-movie-tie-in.pdf
    • http://www.gorillawalker.com/the-boy-who-harnessed-the-wind-creating-currents-of-electricity.pdf
    • http://www.gorillawalker.com/simple-seismics-hardcover.pdf
    • http://www.gorillawalker.com/the-complete-illustrated-children-s-bible.pdf
    • http://www.gorillawalker.com/the-gift-of-godparents-for-those-chosen-with-love-and.pdf
    • http://www.gorillawalker.com/mobile-devices-tools-and-technologies.pdf
    • http://www.gorillawalker.com/atlantic-coast-lighthouses-2006-calendar.pdf
    • http://www.gorillawalker.com/maiden-voyage-all-blues-jazz-play-along-volume-1a.pdf
    • http://www.gorillawalker.com/foodborne-pathogens-hazards-risk-analysis-and-control-woodhead-publishing-in.pdf
    • http://www.gorillawalker.com/advances-in-spatial-analysis-and-decision-making-proceedings-of-the.pdf
    • http://www.gorillawalker.com/baba-yaga.pdf
    • http://www.gorillawalker.com/statistics-data-analysis-decision-modeling-custom-edition-for-bloomsburg-university.pdf
    • http://www.gorillawalker.com/chemistry-and-chemical-reactivity-volume-2-with-general-chemistrynow.pdf
    • http://www.gorillawalker.com/speed-mathematics.pdf
    • http://www.gorillawalker.com/the-mermaid-s-treasure-hunt-peek-inside-the-3d-windows.pdf
    • http://www.gorillawalker.com/anatomy-and-histology-of-the-mouth-and-teeth-volume-2.pdf
    • http://www.gorillawalker.com/locked-in-a-violent-embrace-understanding-and-intervening-in-domestic.pdf
    • http://www.gorillawalker.com/menage-a-ten-men-an-all-ten-gang-erotica-a.pdf
    • http://www.gorillawalker.com/brown-of-the-globe-volume-two-statesman-of-confederation-1860.pdf
    • http://www.gorillawalker.com/how-to-draw-paint-pin-ups-glamour-girls-step-by.pdf
    • http://www.gorillawalker.com/bibliographic-guide-to-business-and-economics-1988.pdf
    • http://www.gorillawalker.com/rage-against-the-dying-a-thriller-brigid-quinn-series.pdf
    • http://www.gorillawalker.com/scenes-from-the-marketplace.pdf
    • http://www.gorillawalker.com/flow-resistance-a-design-guide-for-engineers.pdf
    • http://www.gorillawalker.com/the-geology-of-the-lake-district-and-the-scenery-as.pdf
    • http://www.gorillawalker.com/the-road-to-seneca-falls-elizabeth-cady-stanton-and-the.pdf
    • http://www.gorillawalker.com/the-british-film-industry-minutes-of-evidence-wednesday-1-february.pdf
    • http://www.gorillawalker.com/what-s-sharing.pdf
    • http://www.gorillawalker.com/saturday-is-for-funerals.pdf
    • http://www.gorillawalker.com/life-in-the-bus-lane-an-english-odyssey-by-bus.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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