Malicious PDF — malware analysis report

Static analysis result for SHA-256 c66623b995eab95a…

MALICIOUS

PDF

43.8 KB Created: 2018-12-07 18:29:40 +03:00 Authoring application: Adobe InDesign CS3 (5.0) (via Adobe PDF Library 8.0)
MD5: 0d552ce56c48398e21ec63179e059d7c SHA-1: d9a69518bcd628d3a14d445ece83bed919ea5f3c SHA-256: c66623b995eab95a4edc104f9773255b181b2d11db6ab500c0afa6d25fc1def1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, constituting a link farm. The primary heuristic 'PDF_SEO_LINK_FARM' indicates that the PDF is designed to link to numerous external PDF documents, likely for SEO manipulation or to distribute content. The ML classifier also flagged the PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/no-more-adhd.pdf
    • http://www.gorillawalker.com/wonderland-manual-for-emerging-architects.pdf
    • http://www.gorillawalker.com/happy-baby-words-bilingual-soft-to-touch-spanish-edition.pdf
    • http://www.gorillawalker.com/losing-emily-a-journey-through-stillbirth-to-finding-peace-and.pdf
    • http://www.gorillawalker.com/muay-thai-kickboxing-the-ultimate-guide-to-conditioning-training-and.pdf
    • http://www.gorillawalker.com/the-devil-in-the-marshalsea.pdf
    • http://www.gorillawalker.com/heal-your-dog-the-natural-way.pdf
    • http://www.gorillawalker.com/last-first-kiss.pdf
    • http://www.gorillawalker.com/reinvesting-in-america-the-grassroots-movements-that-are-feeding-the.pdf
    • http://www.gorillawalker.com/sourcebook-for-political-communication-research-methods-measures-and-analytical-techniques.pdf
    • http://www.gorillawalker.com/backwater.pdf
    • http://www.gorillawalker.com/chemistry-and-chemical-taxonomy-of-the-rutales-annual-preceedings-of.pdf
    • http://www.gorillawalker.com/neuroanatomy-through-clinical-cases-second-edition.pdf
    • http://www.gorillawalker.com/spinoza-s-revolutions-in-natural-law.pdf
    • http://www.gorillawalker.com/solar-eclipse-monitoring-for-solar-energy-applications-using-the-solar.pdf
    • http://www.gorillawalker.com/f-vol-1-kindle-edition.pdf
    • http://www.gorillawalker.com/parameters-of-care-for-oral-and-maxillofacial-surgery-a-guide.pdf
    • http://www.gorillawalker.com/mysteries-of-the-last-days-kindle-edition.pdf
    • http://www.gorillawalker.com/complete-keyboard-works-series-one-dover-music-for-piano.pdf
    • http://www.gorillawalker.com/the-zofingia-lectures-collected-works-of-c-g-jung.pdf
    • http://www.gorillawalker.com/in-the-lion-s-shadow-the-iranian-schindler-and-his.pdf
    • http://www.gorillawalker.com/lonergan-outstanding-christian-thinkers.pdf
    • http://www.gorillawalker.com/the-99-critical-shots-in-pool.pdf
    • http://www.gorillawalker.com/aging-aircraft-repair-replacement-decisions-with-depot-level-capacity-as.pdf
    • http://www.gorillawalker.com/an-italic-calligraphy-handbook.pdf
    • http://www.gorillawalker.com/lenguaje-y-comunicacion-4-libro-de-texto-spanish-edition.pdf
    • http://www.gorillawalker.com/alexandre-hogue-an-american-visionary-paintings-and-works-on-paper.pdf
    • http://www.gorillawalker.com/electrician-s-guide-to-control-and-monitoring-systems-installation-troubleshooting.pdf
    • http://www.gorillawalker.com/family-familie-bilingual-first-books-english-and-german-edition.pdf
    • http://www.gorillawalker.com/human-resource-management-for-the-hospitality-and-tourism-industries.pdf
    • http://www.gorillawalker.com/the-berenstain-bears-mother-s-day-blessings-berenstain-bears-living.pdf
    • http://www.gorillawalker.com/from-felt-to-fabric-new-techniques-in-nuno-felting.pdf
    • http://www.gorillawalker.com/the-riso-hudson-enneagram-type-indicator-rheti-version-2-5.pdf
    • http://www.gorillawalker.com/men-on-men-vol-1.pdf
    • http://www.gorillawalker.com/the-exploration-of-the-colorado-river-and-its-canyons-national.pdf
    • http://www.gorillawalker.com/bullion-and-foreign-exchanges-theoretically-and-practically-considered-followed-by.pdf
    • http://www.gorillawalker.com/roulettechess-a-technology-of-systems-play-for-roulette-kindle-edition.pdf
    • http://www.gorillawalker.com/engineering-fluid-mechanics-practice-problems-with-solutions.pdf
    • http://www.gorillawalker.com/elements-of-planting-design.pdf
    • http://www.gorillawalker.com/a-history-of-western-philosophy-counterpoint-edition.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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