Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ea57906208aabfe…

MALICIOUS

PDF

45.4 KB Created: 2019-04-29 19:42:13 +03:00 Authoring application: Word (via Acrobat PDFMaker 15 for Word)
MD5: 08af07e0878187d29dc7eb1941437c70 SHA-1: 6086816b0c1acf96d4fd30d3d145bbaa9002d1e8 SHA-256: 5ea57906208aabfeb730b57e9188ece8b9685c0177f88a7708f9062fc440cc07
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm, which is a common tactic for SEO manipulation or distributing malicious payloads. ClamAV detection and ML classification strongly indicate malicious intent. The primary IOCs are the numerous URLs embedded within the document, which likely serve as the distribution mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7393254-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7393254-0
  • 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/social-and-political-philosophy-a-contemporary-introduction-routledge-contemporary-introductions.pdf
    • http://www.gorillawalker.com/failing-law-schools-chicago-series-in-law-and-society.pdf
    • http://www.gorillawalker.com/stolen-child-do-you-know-who-you-are.pdf
    • http://www.gorillawalker.com/budapest-city-streets-laminated-map.pdf
    • http://www.gorillawalker.com/epic-nation-reimagining-the-mahabharata-in-the-age-of-the.pdf
    • http://www.gorillawalker.com/the-artful-wooden-spoon-how-to-make-exquisite-keepsakes-for.pdf
    • http://www.gorillawalker.com/studyguide-for-introduction-to-physical-anthropology-2013-2014-edition-by.pdf
    • http://www.gorillawalker.com/biocompatibility-in-hemodialysis-congress-bernried-march-1982-contributions-to-nephrology.pdf
    • http://www.gorillawalker.com/management-models-and-industrial-applications-of-linear-programming-two-volumes.pdf
    • http://www.gorillawalker.com/electric-energy-conversion.pdf
    • http://www.gorillawalker.com/elvis-presley-volume-1-pro-vocal-men-s-edition-volume.pdf
    • http://www.gorillawalker.com/the-story-niv-the-bible-as-one-continuing-story-of.pdf
    • http://www.gorillawalker.com/haramiru-s-2012-breeding-erotica-haramiru-collection.pdf
    • http://www.gorillawalker.com/the-dom-with-the-perfect-brats-badass-brats-book-3.pdf
    • http://www.gorillawalker.com/tommy-nelson-s-brave-girls-devotional-bible-pink-leathersoft-cover.pdf
    • http://www.gorillawalker.com/take-my-hand-again-a-faith-based-guide-for-helping.pdf
    • http://www.gorillawalker.com/2-images-op-10-harp-2-part-qty-3-a1251.pdf
    • http://www.gorillawalker.com/cixous-irigaray-kristeva-jouissance-of-french-feminism.pdf
    • http://www.gorillawalker.com/soil-survey-of-the-county-of-two-hills-no-21.pdf
    • http://www.gorillawalker.com/popular-science-1946-december.pdf
    • http://www.gorillawalker.com/quantum-computing.pdf
    • http://www.gorillawalker.com/chemical-hardness-structure-and-bonding.pdf
    • http://www.gorillawalker.com/desperados-the-novel-motorcycle-club-romance-kindle-edition.pdf
    • http://www.gorillawalker.com/dictionnaire-russe-fran-ais-moderne-french-edition.pdf
    • http://www.gorillawalker.com/the-cultures-of-creationism-anti-evolution-in-english-speaking-countries.pdf
    • http://www.gorillawalker.com/quantum-electron-liquids-and-high-tc-superconductivity-lecture-notes-in.pdf
    • http://www.gorillawalker.com/the-biomechanical-basis-of-ergonomics-anatomy-applied-to-the-design.pdf
    • http://www.gorillawalker.com/a-peace-to-end-all-peace-the-fall-of-the.pdf
    • http://www.gorillawalker.com/the-autobiography-of-an-execution.pdf
    • http://www.gorillawalker.com/tercera-edad-actividad-fisica-y-salud-cuerpo-sano-healthy-body.pdf
    • http://www.gorillawalker.com/westmorland-way-walking-country.pdf
    • http://www.gorillawalker.com/just-eat-it-how-to-ditch-the-green-smoothies-juice.pdf
    • http://www.gorillawalker.com/the-american-congress-of-lawyers-the-fourth-centenary-of-the.pdf
    • http://www.gorillawalker.com/a-level-chemistry-a-for-ocr-year-2-student-book.pdf
    • http://www.gorillawalker.com/naruto-the-movie-ani-manga-vol-2-legend-of-the.pdf
    • http://www.gorillawalker.com/2016-history-channel-wwii-boxed-calendar-365-incredible-events-fascinating.pdf
    • http://www.gorillawalker.com/a-dictionary-of-environmental-quotations.pdf
    • http://www.gorillawalker.com/by-david-cho-hackers-toefl-writing-with-cd-ibt.pdf
    • http://www.gorillawalker.com/introduction-to-geometry-solutions-manual.pdf
    • http://www.gorillawalker.com/handbook-of-cognitive-behavioral-therapies.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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