Malicious PDF — malware analysis report

Static analysis result for SHA-256 b721a80ede239c55…

MALICIOUS

PDF

46.6 KB Created: 2018-12-07 18:27:41 +03:00 Authoring application: QuarkXPressª: LaserWriter 8 8.5.1 (via Acrobat Distiller 3.01 for Power Macintosh)
MD5: e00ff2cd462c4eb37d647686658ceb6b SHA-1: 408bc568bccb4a0f06a9c66112272c3d72cc1fb7 SHA-256: b721a80ede239c55677971b9b2e38b0dbbf4f8a7b12dcfe5287a3cefbc3999f0
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of external links, many of which point to PDF files on the same domain. This suggests a link farm or SEO manipulation tactic, potentially to distribute malicious content or to influence search rankings. The document body itself is heavily obfuscated and does not provide clear textual clues about its intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

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/section-1983-litigation-federal-evidence-volume-3.pdf
    • http://www.gorillawalker.com/the-tallow-image.pdf
    • http://www.gorillawalker.com/nordic-walking-the-complete-guide-to-health-fitness-and-fun.pdf
    • http://www.gorillawalker.com/traditional-toolmaking-the-classic-treatise-on-lapping-threading-precision-measurements.pdf
    • http://www.gorillawalker.com/leading-six-sigma-a-step-by-step-guide-based-on.pdf
    • http://www.gorillawalker.com/sermon-outlines-for-evangelism-sermon-outlines-baker-book.pdf
    • http://www.gorillawalker.com/a-hymn-of-praise-lobgesang-symphonia-cantata-no-1-op.pdf
    • http://www.gorillawalker.com/cardio-sucks-how-to-lose-14-7-more-belly-fat.pdf
    • http://www.gorillawalker.com/macrobiotics-for-dummies-kindle-edition.pdf
    • http://www.gorillawalker.com/the-art-of-gear-fabrication.pdf
    • http://www.gorillawalker.com/panis-angelicus-vocal-score-author-cesar-franck-published-on-october.pdf
    • http://www.gorillawalker.com/indigenous-conflict-management-strategies-global-perspectives.pdf
    • http://www.gorillawalker.com/solidworks-2014-part-ii-advanced-techniques.pdf
    • http://www.gorillawalker.com/immunology-of-the-lacrimal-gland-tear-film-and-ocular-surface.pdf
    • http://www.gorillawalker.com/what-am-i-a-collection-of-traditional-word-riddles-volume.pdf
    • http://www.gorillawalker.com/the-osteoporosis-preventive-health-hardcover-traditional-chinese-edition.pdf
    • http://www.gorillawalker.com/laser-induced-damage-of-optical-materials-series-in-optics-and.pdf
    • http://www.gorillawalker.com/the-poetical-works-of-john-milton.pdf
    • http://www.gorillawalker.com/ready-set-learn-alphabet-prek-k-ready-set-learn.pdf
    • http://www.gorillawalker.com/wirelesshart-tm-real-time-mesh-network-for-industrial-automation.pdf
    • http://www.gorillawalker.com/ender-s-game-movie-trivia-quiz-book.pdf
    • http://www.gorillawalker.com/industrial-crops-breeding-for-bioenergy-and-bioproducts-handbook-of-plant.pdf
    • http://www.gorillawalker.com/string-festival-solos-vol-2-violin-piano-accompaniment-book-easy.pdf
    • http://www.gorillawalker.com/the-way-i-was.pdf
    • http://www.gorillawalker.com/domestic-scenes-in-greenland-and-iceland.pdf
    • http://www.gorillawalker.com/guidelines-of-engineering-practice-for-braced-and-tied-back-excavations.pdf
    • http://www.gorillawalker.com/divided-power-the-presidency-congress-and-the-formation-of-american.pdf
    • http://www.gorillawalker.com/peace-kindle-edition.pdf
    • http://www.gorillawalker.com/the-crimes-of-love-oxford-world-s-classics.pdf
    • http://www.gorillawalker.com/levy-processes.pdf
    • http://www.gorillawalker.com/labrador-wilderness-newfoundland-and-labrador-canada-refresh-your-body-mind.pdf
    • http://www.gorillawalker.com/shortcut-to-a-miracle-how-to-change-your-consciousness-and.pdf
    • http://www.gorillawalker.com/i-was-dreaming-to-come-to-america-memories-from-the.pdf
    • http://www.gorillawalker.com/boundary-elements-starter-pack-for-stress-analysis-acoustics-and-fracture.pdf
    • http://www.gorillawalker.com/dead-man-walking-the-eyewitness-account-of-the-death-penalty.pdf
    • http://www.gorillawalker.com/to-dare-a-seal-sin-city-seals.pdf
    • http://www.gorillawalker.com/selections-from-disney-s-princess-collection-vol-1-the-music.pdf
    • http://www.gorillawalker.com/mig-17-and-mig-19-units-of-the-vietnam-war.pdf
    • http://www.gorillawalker.com/applied-methods-of-cost-benefit-analysis-in-health-care-handbooks.pdf
    • http://www.gorillawalker.com/alquimia-del-liderazgo-la-magia-del-l-der-coach-spanish.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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