Malicious PDF — malware analysis report

Static analysis result for SHA-256 a66fe097344a1e49…

MALICIOUS

PDF

43.8 KB Created: 2018-11-30 21:01:22 +03:00 Authoring application: FrameMaker 7.0 (via Acrobat Distiller 5.0.5 (Windows); modified using iText® 5.5.4 ©2000-2014 iText Group NV (AGPL-version))
MD5: 7c62c7bb2c18e79389915a059dcaf306 SHA-1: 3a0252c58164000965fb7eb229937a1c6e7b7938 SHA-256: a66fe097344a1e4923b2453a204c7f2eae257cde5feb170df66854c4ce0aa166
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs, many of which appear to be part of a link farm. This suggests the document is likely used for SEO manipulation or to distribute further malicious content through these links. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/sibling-relationships-in-step-families-a-sociological-study.pdf
    • http://www.gorillawalker.com/learning-about-compassion-from-the-life-of-florence-nightingale-historical.pdf
    • http://www.gorillawalker.com/forensic-geotechnical-engineering-developments-in-geotechnical-engineering.pdf
    • http://www.gorillawalker.com/straightling-a-memoir-hey-kid-series-book-2-kindle-edition.pdf
    • http://www.gorillawalker.com/the-hydrogen-bomb-and-even-more-yo-yo-stuff.pdf
    • http://www.gorillawalker.com/la-asombrosa-graciela-spanish-edition.pdf
    • http://www.gorillawalker.com/the-immigrants-expansion-of-america-ii.pdf
    • http://www.gorillawalker.com/doing-things-with-poems-performativity-and-cultural-form-an-article.pdf
    • http://www.gorillawalker.com/python-on-symbian-mobile-app-development-made-easy.pdf
    • http://www.gorillawalker.com/abc-limericks-for-kids-the-abc-limericks-for-children-series.pdf
    • http://www.gorillawalker.com/issues-in-intimate-violence.pdf
    • http://www.gorillawalker.com/sandro-photography-fashion-portraiture-sports.pdf
    • http://www.gorillawalker.com/higher-geometry-an-introduction-to-advanced-methods-in-analytic-geometry.pdf
    • http://www.gorillawalker.com/film-preservation-competing-definitions-of-value-use-and-practice.pdf
    • http://www.gorillawalker.com/exam-70-640-windows-server-2008-active-directory-configuration.pdf
    • http://www.gorillawalker.com/neuropsicolog-a-de-la-atenci-n-las-funciones-ejecutivas-y.pdf
    • http://www.gorillawalker.com/the-adventures-of-ebenezer-fox-in-the-revolutionary-war-1838.pdf
    • http://www.gorillawalker.com/the-cambridge-introduction-to-russian-poetry-book-review-an-article.pdf
    • http://www.gorillawalker.com/a-human-element-the-element-trilogy-volume-1.pdf
    • http://www.gorillawalker.com/without-form-and-void-a-study-of-the-meaning-of.pdf
    • http://www.gorillawalker.com/introduction-to-pspice-for-electric-circuits-6th-edition.pdf
    • http://www.gorillawalker.com/dye-plants-and-dyeing.pdf
    • http://www.gorillawalker.com/loving-my-lot-a-young-mom-s-journey-to-contentment.pdf
    • http://www.gorillawalker.com/fletcher-sims-compost.pdf
    • http://www.gorillawalker.com/shake-hands-with-the-devil-how-to-master-life-s.pdf
    • http://www.gorillawalker.com/conversations-on-harmony-1855-classic-texts-in-music-education.pdf
    • http://www.gorillawalker.com/2010-2011-nelson-s-pocket-book-of-pediatric-antimicrobial-therapy.pdf
    • http://www.gorillawalker.com/for-those-involved-in-welfare-nursing-and-medical-care-fact.pdf
    • http://www.gorillawalker.com/pocket-history-of-the-church-ivp-pocket-reference.pdf
    • http://www.gorillawalker.com/the-barbarian-dagwn-s-tale-tales-of-aurelia-book-3.pdf
    • http://www.gorillawalker.com/the-little-pie-cookbook.pdf
    • http://www.gorillawalker.com/thicker-than-blood-how-racial-statistics-lie.pdf
    • http://www.gorillawalker.com/die-beurteilung-des-behandlungserfolges-in-der-psychotherapie-523-acht-bis.pdf
    • http://www.gorillawalker.com/groovy-map-guide-bangkok-by-night-groovy-map-n-guide.pdf
    • http://www.gorillawalker.com/wayne-thiebaud-2016-calendar.pdf
    • http://www.gorillawalker.com/bark-baxter-bark-the-literacy-tower.pdf
    • http://www.gorillawalker.com/snaggletooth-and-orthodontic-treatment-of-the-protrusion-korean-edition.pdf
    • http://www.gorillawalker.com/hot-anime-girls-vol-5-hq-pictures-kindle-edition.pdf
    • http://www.gorillawalker.com/pistachio-salad-recipes-kindle-edition.pdf
    • http://www.gorillawalker.com/the-elixir-of-love-l-elisir-d-amore-opera-score.pdf
    • http://www.gorillawalker.com/d
    • 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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