Malicious PDF — malware analysis report

Static analysis result for SHA-256 873c0e4d07c52fa1…

MALICIOUS

PDF

41.6 KB Created: 2018-12-15 08:52:58 +03:00 Authoring application: DocBook XSL Stylesheets with Apache FOP (via Apache FOP Version 2.1)
MD5: 5d5cdd6a9fd63f345d325c34c9bfd8f3 SHA-1: adf648c13a5425405efc34cd9b3b6a3cb530ba05 SHA-256: 873c0e4d07c52fa1ace6a0975c12deaac243a6e13441db864f3f963913c6b5d2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this document as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/layout-look-book-the.pdf
    • http://www.gorillawalker.com/the-journey-home-the-story-of-michael-thomas-and-the.pdf
    • http://www.gorillawalker.com/the-new-economics-of-outdoor-recreation.pdf
    • http://www.gorillawalker.com/the-chooser.pdf
    • http://www.gorillawalker.com/database-design-for-mere-mortals-a-hands-on-guide-to.pdf
    • http://www.gorillawalker.com/autocad-2008-tutorial-first-level-2d-with-cd.pdf
    • http://www.gorillawalker.com/introduction-to-book-history.pdf
    • http://www.gorillawalker.com/believe-what-you-will-rsc-classics.pdf
    • http://www.gorillawalker.com/haunted-beauty-aesthetics-and-mindfulness-in-the-traditional-ghost-story.pdf
    • http://www.gorillawalker.com/lee-bailey-s-country-desserts.pdf
    • http://www.gorillawalker.com/electrical-network-theory.pdf
    • http://www.gorillawalker.com/a-chemist-in-the-white-house-from-the-manhattan-project.pdf
    • http://www.gorillawalker.com/latter-day-laughs.pdf
    • http://www.gorillawalker.com/the-forgotten-man-a-new-history-of-the-great-depression.pdf
    • http://www.gorillawalker.com/soul-survivors-a-new-beginning-for-adults-abused-as-children.pdf
    • http://www.gorillawalker.com/the-next-apple-how-to-find-stocks-that-could-go.pdf
    • http://www.gorillawalker.com/modern-chemistry-student-edition-2009.pdf
    • http://www.gorillawalker.com/2014-pro-football-focus-fantasy-draft-guide.pdf
    • http://www.gorillawalker.com/artificial-intelligence-in-manufacturing-research-material-and-manufacturing-technology.pdf
    • http://www.gorillawalker.com/wealth-building-made-simple-take-control-and-build-a-financial.pdf
    • http://www.gorillawalker.com/la-historia-secreta-de-los-jesuitas-annotated-spanish-edition.pdf
    • http://www.gorillawalker.com/television-s-moment-sitcom-audiences-and-the-sixties-cultural-revolution.pdf
    • http://www.gorillawalker.com/they-killed-our-president-63-reasons-to-believe-there-was.pdf
    • http://www.gorillawalker.com/chippenham-and-bradford-on-avon-os-explorer-active-map.pdf
    • http://www.gorillawalker.com/who-hid-it-pb-discovery-books-for-toddlers.pdf
    • http://www.gorillawalker.com/photo-idea-index.pdf
    • http://www.gorillawalker.com/prehistoric-earth.pdf
    • http://www.gorillawalker.com/el-se-or-es-mi-pastor-spanish-edition.pdf
    • http://www.gorillawalker.com/hucow-farm-bundle-fertile-hucow-first-time-interracial-erotica.pdf
    • http://www.gorillawalker.com/discourse-theory-and-practice-a-reader-published-in-association-with.pdf
    • http://www.gorillawalker.com/death-of-a-newspaperman-a-novel.pdf
    • http://www.gorillawalker.com/dirty-jokes-n-adult-memes-uncensored-and-explicit-v5-funny.pdf
    • http://www.gorillawalker.com/stolen-legacy-the-egyptian-origins-of-western-philosophy.pdf
    • http://www.gorillawalker.com/voices-from-the-heart.pdf
    • http://www.gorillawalker.com/conquest-star-force.pdf
    • http://www.gorillawalker.com/poop-eaters-dung-beetles-in-the-food-chain-abridged-audible.pdf
    • http://www.gorillawalker.com/rem-world.pdf
    • http://www.gorillawalker.com/filipino-culture-101-your-guide-to-understanding-the-philippines-kindle.pdf
    • http://www.gorillawalker.com/sam-walton-the-inside-story-of-america-s-richest-man.pdf
    • http://www.gorillawalker.com/an-account-of-an-embassy-to-the-kingdom-of-ava.pdf
    • http://www.gorillawalker.com/lee-bailey
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.