Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7002239716896cc…

MALICIOUS

PDF

33.5 KB Created: 2020-01-03 23:43:12 +03:00 Authoring application: TopLeaf 7.6.056 (via iText 2.1.7 by 1T3XT)
MD5: 1cd33c78e1960950ab0317edc4c402d7 SHA-1: 346a064b704169af2430c37290c1e4c9c23bc3ba SHA-256: f7002239716896cc0a4fee91172fc192d9d568acc9be084caac694b9f9904cf0
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files on the domain www.gorillawalker.com. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious, supporting the suspicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/handbook-of-dementia.pdf
    • http://www.gorillawalker.com/color-splash-detailed-designs-and-advanced-patterns-adult-coloring-book.pdf
    • http://www.gorillawalker.com/cissp-study-guide-second-edition.pdf
    • http://www.gorillawalker.com/essentials-of-chinese-acupuncture.pdf
    • http://www.gorillawalker.com/theological-crossfire-an-evangelical-liberal-dialogue-interpretation-4.pdf
    • http://www.gorillawalker.com/uncovering-fraud-an-online-practice-case.pdf
    • http://www.gorillawalker.com/love-from-the-very-hungry-caterpillar.pdf
    • http://www.gorillawalker.com/evalyce-worldshaper-vol-1-mother-of-wolves.pdf
    • http://www.gorillawalker.com/in-search-of-deep-faith-a-pilgrimage-into-the-beauty.pdf
    • http://www.gorillawalker.com/contemporary-psychoanalysis-and-the-legacy-of-the-third-reich-history.pdf
    • http://www.gorillawalker.com/jin-xian-dai-ci-ji-shi-hui-ping-li-dai.pdf
    • http://www.gorillawalker.com/dance-for-the-older-adult-focus-on-dance.pdf
    • http://www.gorillawalker.com/elementary-and-middle-school-mathematics-teaching-developmentally-6th-sixth-edition.pdf
    • http://www.gorillawalker.com/greenland-and-other-poems.pdf
    • http://www.gorillawalker.com/the-idea-of-europe-an-essay.pdf
    • http://www.gorillawalker.com/connor-the-conker-and-the-breezy-day-an-interactive-pilates.pdf
    • http://www.gorillawalker.com/rainy-brain-sunny-brain-how-to-retrain-your-brain-to.pdf
    • http://www.gorillawalker.com/thermodynamics-for-engineering-technology.pdf
    • http://www.gorillawalker.com/the-spiderwick-chronicles-the-complete-series-the-field-guide-the.pdf
    • http://www.gorillawalker.com/sex-press-the-sexual-revolution-in-the-underground-press-1963.pdf
    • http://www.gorillawalker.com/the-journal-of-parasitology.pdf
    • http://www.gorillawalker.com/independent-travellers-thailand-malaysia-and-singapore-2005-the-budget-travel.pdf
    • http://www.gorillawalker.com/four-women-on-the-trail-to-love-boxed-set-of.pdf
    • http://www.gorillawalker.com/restructuring-for-innovation-the-remaking-of-the-u-s-semiconductor.pdf
    • http://www.gorillawalker.com/xenotech-rising-a-novel-of-the-galactic-free-trade-association.pdf
    • http://www.gorillawalker.com/letters-home-1944-1946.pdf
    • http://www.gorillawalker.com/creative-dimensions-of-suffering.pdf
    • http://www.gorillawalker.com/archives-power-memory-accountability-and-social-justice.pdf
    • http://www.gorillawalker.com/video-theory-online-video-aesthetics-or-the-afterlife-of-video.pdf
    • http://www.gorillawalker.com/the-name-of-the-dead-hieroglyphic-inscriptions-of-the-treasures.pdf
    • http://www.gorillawalker.com/devon-e-cornovaglia-serie-inghilterra-settimana-1-italian-edition-kindle.pdf
    • http://www.gorillawalker.com/toronto-destination-map-national-geographic.pdf
    • http://www.gorillawalker.com/europe-after-rome-a-new-cultural-history-500-1000.pdf
    • http://www.gorillawalker.com/but-he-ll-change-end-the-thinking-that-keeps-you.pdf
    • http://www.gorillawalker.com/hypnotic-billy-1-4-early-days.pdf
    • http://www.gorillawalker.com/the-practice-of-oil-painting-and-drawing-dover-art-instruction.pdf
    • http://www.gorillawalker.com/kurzes-lehrbuch-der-physik.pdf
    • http://www.gorillawalker.com/bankruptcy-issues-rules-analysis-paperback.pdf
    • http://www.gorillawalker.com/what-horses-teach-us-2015-desk-calendar-by-willow-creek.pdf
    • http://www.gorillawalker.com/a-jersey-affair-the-jersey-scene.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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