Malicious PDF — malware analysis report

Static analysis result for SHA-256 acd08ab916f2f4d6…

MALICIOUS

PDF

43.7 KB Created: 2018-11-14 08:15:53 +03:00 Authoring application: Apache FOP Version 2.1
MD5: 61b17c8591a2f0e3236a6b56a230d060 SHA-1: 8bcd463bc14ea1ee13a3351d7df62eee5479949b SHA-256: acd08ab916f2f4d6df661ddb4fa6c2f2a9a5642f8302d641ecc155c5af086e8c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by an ML classifier as malicious and contains a large number of embedded links to external PDF files, suggesting a link farm or content distribution tactic. The primary attack pattern appears to be SEO manipulation or the distribution of further malicious content via these links. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/investment-protection-in-brazil.pdf
    • http://www.gorillawalker.com/wicca-a-beginner-s-guide-to-casting-spells-herbal-crystal.pdf
    • http://www.gorillawalker.com/tom-thumb-a-fairy-tale-by-perrault-little-pebbles.pdf
    • http://www.gorillawalker.com/saving-homewaters-the-story-of-montana-s-streams-and-rivers.pdf
    • http://www.gorillawalker.com/securing-voip-networks-threats-vulnerabilities-and-countermeasures.pdf
    • http://www.gorillawalker.com/students-vocabulary-of-biblical-hebrew.pdf
    • http://www.gorillawalker.com/materials-science-of-polymers-for-engineers-3e.pdf
    • http://www.gorillawalker.com/experimental-soil-mechanics.pdf
    • http://www.gorillawalker.com/war-in-iraq-witness-to-history.pdf
    • http://www.gorillawalker.com/j-w-morrice-canadian-artists-series.pdf
    • http://www.gorillawalker.com/t-cnicas-de-recolecci-n-de-datos-cuando-la-unidad.pdf
    • http://www.gorillawalker.com/gsec-giac-security-essential-certification-exam-preparation-course-in-a.pdf
    • http://www.gorillawalker.com/judgement-at-gitmo.pdf
    • http://www.gorillawalker.com/secret-agent-s-handbook-the-wwii-spy-manual-of-devices.pdf
    • http://www.gorillawalker.com/shapes-dana-simson-chunky-books.pdf
    • http://www.gorillawalker.com/kiss-greatest-hits-volume-3.pdf
    • http://www.gorillawalker.com/archetypal-patterns-in-poetry-psychological-studies-of-imagination-psychological-studies.pdf
    • http://www.gorillawalker.com/tin-horns-and-calico-a-decisive-episode-in-the-emergence.pdf
    • http://www.gorillawalker.com/gran-recetario-magico-tabla-de-esmeralda-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/street-spanish-3-the-best-of-naughty-spanish.pdf
    • http://www.gorillawalker.com/sport-climbs-in-the-canadian-rockies-7th-edition.pdf
    • http://www.gorillawalker.com/motorcycles-rollin.pdf
    • http://www.gorillawalker.com/collateral-damage-life-as-a-mortgage-broker.pdf
    • http://www.gorillawalker.com/gregg-microcomputer-keyboarding-and-document-processing.pdf
    • http://www.gorillawalker.com/building-emotional-intelligence-techniques-to-cultivate-inner-strength-in-children.pdf
    • http://www.gorillawalker.com/emts-help-us-all-about-community-helpers.pdf
    • http://www.gorillawalker.com/gay-interracial-pickup-artist-how-a-normal-looking-white-guy.pdf
    • http://www.gorillawalker.com/penny-stocks-the-ultimate-guide-to-mastering-penny-stocks-for.pdf
    • http://www.gorillawalker.com/leo-fabrizio-dreamworld.pdf
    • http://www.gorillawalker.com/the-handbook-of-contemporary-semantic-theory.pdf
    • http://www.gorillawalker.com/babel.pdf
    • http://www.gorillawalker.com/academic-assessment-and-intervention.pdf
    • http://www.gorillawalker.com/just-5-slow-cooker-just-5-ingredients.pdf
    • http://www.gorillawalker.com/typography-for-lawyers.pdf
    • http://www.gorillawalker.com/las-crisis-de-la-gran-depresi-n-a-la-primera.pdf
    • http://www.gorillawalker.com/the-comeback-season.pdf
    • http://www.gorillawalker.com/curating-milan-city-notebook-for-milan-italy-a-d-i.pdf
    • http://www.gorillawalker.com/forgetting-the-memories-a-caregiver-s-journey-through-alzheimer-s.pdf
    • http://www.gorillawalker.com/twin-sense-a-sanity-saving-guide-to-raising-twins-from.pdf
    • http://www.gorillawalker.com/australian-bachelors-sassy-brides-the-wealthy-australian-s-proposal-inherited.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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