Malicious PDF — malware analysis report

Static analysis result for SHA-256 864a2460f42fd5a2…

MALICIOUS

PDF

45.9 KB Created: 2018-12-15 20:09:40 +03:00 Authoring application: Adobe InDesign CS5 (7.0.3) (via Adobe PDF Library 9.9)
MD5: e406bf355fe2c46cf958ab002c8c68f9 SHA-1: 740ffac6fbc611f4bd4ee91764dd87990d3ce4ee SHA-256: 864a2460f42fd5a2efcf7f9bd4af62cf93f2bce916aa9b24a37d1983b0d999b1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links to other PDF files suggests a link farm or SEO manipulation tactic. The SE_DOWNLOAD_BUTTON heuristic also indicates a potential lure, though its signal is low without other indicators. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8974

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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-shadow-and-night-the-lamb-among-the-stars-book.pdf
    • http://www.gorillawalker.com/comprehensive-vascular-and-endovascular-surgery-expert-consult-online-and-print.pdf
    • http://www.gorillawalker.com/renovatio.pdf
    • http://www.gorillawalker.com/ethnological-museum-berlin.pdf
    • http://www.gorillawalker.com/weld-integrity-and-performance-a-source-book-adapted-from-asm.pdf
    • http://www.gorillawalker.com/vintage-purdue-boilermakers-2010-football-program-calendar.pdf
    • http://www.gorillawalker.com/the-yellow-wallpaper.pdf
    • http://www.gorillawalker.com/workshop-physics-activity-guide-module-2-mechanics-ii.pdf
    • http://www.gorillawalker.com/letters-to-a-young-man-and-other-papers-de-quincey.pdf
    • http://www.gorillawalker.com/unlucky-the-case-files-of-dr-matilda-schmidt-paranormal-psychologist.pdf
    • http://www.gorillawalker.com/plotting-a-true-course-reflections-on-usaf-strategic-attack-theory.pdf
    • http://www.gorillawalker.com/the-panic-free-pregnancy-an-ob-gyn-separates-fact-from.pdf
    • http://www.gorillawalker.com/tragedy-in-south-lebanon-the-israeli-hezbollah-war-of-2006.pdf
    • http://www.gorillawalker.com/last-forbidden-kingdom.pdf
    • http://www.gorillawalker.com/what-it-takes-the-way-to-the-white-house-kindle.pdf
    • http://www.gorillawalker.com/food-genuss-aus-der-k-che-author-papadoxx-fotografie.pdf
    • http://www.gorillawalker.com/w-a-mozart-concerto-no-2-in-d-1st-position.pdf
    • http://www.gorillawalker.com/figured-harmony-at-the-keyboard-part-1-pt-1.pdf
    • http://www.gorillawalker.com/davy-crockett-s-own-story-the-autobiography-of-america-s.pdf
    • http://www.gorillawalker.com/outlaw-lovers-an-erotic-adventure.pdf
    • http://www.gorillawalker.com/subsonic-aerodynamics-collection-of-exercises.pdf
    • http://www.gorillawalker.com/the-mechanics-of-solder-alloy-wetting-and-spreading.pdf
    • http://www.gorillawalker.com/southern-cross-to-polar-star-tschiffely-s-ride-being-the.pdf
    • http://www.gorillawalker.com/well-spanked-stories.pdf
    • http://www.gorillawalker.com/religious-music-cantique-de-jean-racine-other-short-choral-works.pdf
    • http://www.gorillawalker.com/slavery-s-constitution-from-revolution-to-ratification-hardcover.pdf
    • http://www.gorillawalker.com/weight-watchers-mediterranean-cooking.pdf
    • http://www.gorillawalker.com/receitas-de-trufas-receitas-de-sobremesas-divinas-livro-2-portuguese.pdf
    • http://www.gorillawalker.com/birth-of-the-nation-the-federal-congress-1789-1791.pdf
    • http://www.gorillawalker.com/shifting-the-apartment-pricing-paradigm-an-article-from-journal-of.pdf
    • http://www.gorillawalker.com/architecture-of-first-societies-a-global-perspective.pdf
    • http://www.gorillawalker.com/dead-to-you.pdf
    • http://www.gorillawalker.com/economic-migration-social-cohesion-and-development-towards-an-integrated-approach.pdf
    • http://www.gorillawalker.com/arsenal-of-democracy-the-politics-of-national-security-from-world.pdf
    • http://www.gorillawalker.com/the-international-art-markets-the-essential-guide-for-collectors-and.pdf
    • http://www.gorillawalker.com/healthy-dish-of-the-day-williams-sonoma.pdf
    • http://www.gorillawalker.com/guia-de-la-fauna-submarina-del-litoral-mediterraneo-continental-espanol.pdf
    • http://www.gorillawalker.com/annapurna-trekking-map-complete-guide-2012.pdf
    • http://www.gorillawalker.com/quality-management-a-comprehensive-guide-for-brewers.pdf
    • http://www.gorillawalker.com/the-groucho-letters-letters-from-and-to-groucho-marx.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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