Malicious PDF — malware analysis report

Static analysis result for SHA-256 18d600e25635c07d…

MALICIOUS

PDF

43.1 KB Created: 2019-03-17 08:02:46 +03:00 Authoring application: Word (via Mac OS X 10.8.5 Quartz PDFContext)
MD5: 02c5f4a7d295169b1597ab157f1903ea SHA-1: 0b36f6605cb937a5c865eec5f76fd577c98f6950 SHA-256: 18d600e25635c07d6bbf7483163db9506bd386783de77f0689340807ce2add82
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 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 further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, 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 0.9027

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/ave-verum-corpus-from-stabat-mater-satb-a-cappella-karl.pdf
    • http://www.gorillawalker.com/harry-potter-symphonic-suite.pdf
    • http://www.gorillawalker.com/god-s-words-of-life-for-leaders.pdf
    • http://www.gorillawalker.com/the-american-civil-war-and-the-origins-of-modern-warfare.pdf
    • http://www.gorillawalker.com/great-hockey-centremen-of-today-amazing-stories-altitude-publishing.pdf
    • http://www.gorillawalker.com/blacksad-arctic-nation.pdf
    • http://www.gorillawalker.com/by-judith-a-beecher-by-marvin-l-bittinger-introductory-and.pdf
    • http://www.gorillawalker.com/iphone-cool-projects.pdf
    • http://www.gorillawalker.com/frabato-the-magician.pdf
    • http://www.gorillawalker.com/cbest-california-basic-educational-skills-test-w-cd-cbest-teacher.pdf
    • http://www.gorillawalker.com/quality-and-performance-improvement-in-healthcare-5th-ed.pdf
    • http://www.gorillawalker.com/popular-science-october-1974.pdf
    • http://www.gorillawalker.com/spell-it-right.pdf
    • http://www.gorillawalker.com/fija-nuevos-est.pdf
    • http://www.gorillawalker.com/estimation-and-inference-in-nonparametric-frontier-models-recent-developments-and.pdf
    • http://www.gorillawalker.com/by-judith-walzer-leavitt-sickness-and-health-in-america-readings.pdf
    • http://www.gorillawalker.com/product-lifecycle-management-ein-leitfaden-f-r-product-development-und.pdf
    • http://www.gorillawalker.com/qatar-oil-gas-sector-business-investment-opportunities-yearbook-world-business.pdf
    • http://www.gorillawalker.com/sorceress-turtleback-school-library-binding-edition.pdf
    • http://www.gorillawalker.com/the-endangered-wildlife-shufflebook.pdf
    • http://www.gorillawalker.com/salmonella-deadly-diseases-and-epidemics.pdf
    • http://www.gorillawalker.com/the-rocky-horror-picture-show-erotic-nightmare-txt-italian-edition.pdf
    • http://www.gorillawalker.com/bunny-island.pdf
    • http://www.gorillawalker.com/nomination-of-kalo-a-hineman-of-kansas-to-be-a.pdf
    • http://www.gorillawalker.com/the-cougar-games-stepdaughters-diary.pdf
    • http://www.gorillawalker.com/the-memory-book-how-to-remember-anything-you-want.pdf
    • http://www.gorillawalker.com/from-a-heavenly-land-julia-s-story-volume-2.pdf
    • http://www.gorillawalker.com/edgework-kindle-edition.pdf
    • http://www.gorillawalker.com/pulse-of-the-people-political-rap-music-and-black-politics.pdf
    • http://www.gorillawalker.com/commercial-and-banking-law-classic-reprint.pdf
    • http://www.gorillawalker.com/m-thode-pilates-pour-enfants.pdf
    • http://www.gorillawalker.com/por-qu-le-pasan-cosas-malas-a-la-gente-buena.pdf
    • http://www.gorillawalker.com/the-georgia-dui-trial-practice-manual-2013-ed-the-georgia.pdf
    • http://www.gorillawalker.com/aat-technician-unit-19-option-preparing-personal-taxation-computations-fa.pdf
    • http://www.gorillawalker.com/diccionario-portugues-espanhol-espanhol-portugues.pdf
    • http://www.gorillawalker.com/jubilaeum-hamburger-stuecke-volume-4-german-edition.pdf
    • http://www.gorillawalker.com/le-creuset-mediterranean-cooking.pdf
    • http://www.gorillawalker.com/federal-tax-course-2008.pdf
    • http://www.gorillawalker.com/gardens-east-west-1974-calendar.pdf
    • http://www.gorillawalker.com/the-highly-sensitive-person-s-companion-daily-exercises-for-calming.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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