Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5ebfbc3e2e270ae…

MALICIOUS

PDF

45.4 KB Created: 2018-11-15 18:31:56 +03:00 Authoring application: GPL Ghostscript 8.64 (via Adobe PDF Library 8.0) First seen: 2018-11-20
MD5: cd419ab1b5ddb250f9536a5bdaab57bb SHA-1: 8aa0b5a5cf5526c0b746ecec9938e821cce691b4 SHA-256: a5ebfbc3e2e270ae6fbd3fb9ad8a3e32e04845907d97d400d39d698a7137bda0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains an embedded URI pointing to an external PDF document. The ML classifier also flagged this PDF as malicious. The primary attack pattern observed is social engineering to trick the user into downloading a potentially malicious file from the provided URL. No scripts were extracted, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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/afghanistan-a-history-of-conflict.pdf In PDF document text
    • http://www.gorillawalker.com/core-periphery-relations-in-the-european-union-the-politics-of.pdfIn PDF document text
    • http://www.gorillawalker.com/frommer-s-paris-2010-frommer-s-color-complete.pdfIn PDF document text
    • http://www.gorillawalker.com/against-equality-queer-revolution-not-mere-inclusion.pdfIn PDF document text
    • http://www.gorillawalker.com/volunteer-tourism-the-lifestyle-politics-of-international-development-contemporary-geographies.pdfIn PDF document text
    • http://www.gorillawalker.com/thomas-and-friends-sticker-calendar.pdfIn PDF document text
    • http://www.gorillawalker.com/sorbetn-chte-liebe-lieber-zwischendurch-german-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/m-rmol-y-azahar-spanish-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/the-promise-positioned-and-prepared.pdfIn PDF document text
    • http://www.gorillawalker.com/doctor-who-the-forgotten.pdfIn PDF document text
    • http://www.gorillawalker.com/alwyn-crawshaw-s-watercolour-painting-course.pdfIn PDF document text
    • http://www.gorillawalker.com/how-to-become-a-wholesale-millionaire.pdfIn PDF document text
    • http://www.gorillawalker.com/variations-on-a-rococo-theme-op-33-version-a-full.pdfIn PDF document text
    • http://www.gorillawalker.com/alchemical-healing-a-guide-to-spiritual-physical-and-transformational-medicine.pdfIn PDF document text
    • http://www.gorillawalker.com/guia-bilingue-legal-para-todos-bilingual-legal-guide-for-all.pdfIn PDF document text
    • http://www.gorillawalker.com/coahuila-guia-para-descubrir-los-encantos-del-estado-delicioso-viaje.pdfIn PDF document text
    • http://www.gorillawalker.com/modern-power-system-protection.pdfIn PDF document text
    • http://www.gorillawalker.com/tuscany-blue-guides.pdfIn PDF document text
    • http://www.gorillawalker.com/willow-brook-road-a-chesapeake-shores-novel.pdfIn PDF document text
    • http://www.gorillawalker.com/classic-racing-engines-design-development-and-performance-of-the-world.pdfIn PDF document text
    • http://www.gorillawalker.com/a-window-of-opportunity-europe-gulf-security-and-the-aftermath.pdfIn PDF document text
    • http://www.gorillawalker.com/clinical-skills-online-for-kinn-s-the-medical-assistant-user.pdfIn PDF document text
    • http://www.gorillawalker.com/geology-of-california-bound-with-structural-evolution-of-southern-california.pdfIn PDF document text
    • http://www.gorillawalker.com/colin-powell-have-a-vision-be-demanding-african-american-biographies.pdfIn PDF document text
    • http://www.gorillawalker.com/taking-sides-clashing-views-in-constitutional-law.pdfIn PDF document text
    • http://www.gorillawalker.com/amor-hypermedialis-logiken-der-liebe-im-spanischen-gegenwartsroman-br-von.pdfIn PDF document text
    • http://www.gorillawalker.com/drawing-conclusions-level-h-merrill-reading-skilltext.pdfIn PDF document text
    • http://www.gorillawalker.com/atlas-of-islamic-history.pdfIn PDF document text
    • http://www.gorillawalker.com/joint-motion-and-function-assessment-a-research-based-practical-guide.pdfIn PDF document text
    • http://www.gorillawalker.com/silicon-dreams-information-man-and-machine.pdfIn PDF document text
    • http://www.gorillawalker.com/coming-home-siren-publishing-menage-everlasting.pdfIn PDF document text
    • http://www.gorillawalker.com/joseph-brodsky-and-the-baroque.pdfIn PDF document text
    • http://www.gorillawalker.com/homegrown-violent-extremism.pdfIn PDF document text
    • http://www.gorillawalker.com/earl-haig-my-father-s-son-the-memoir-of-dawyck.pdfIn PDF document text
    • http://www.gorillawalker.com/litigating-the-employment-tort-case-a-guide-for-plaintiff-and.pdfIn PDF document text
    • http://www.gorillawalker.com/clonebrews-2nd-edition-recipes-for-200-brand-name-beers.pdfIn PDF document text
    • http://www.gorillawalker.com/rock-and-roll-stars-2010-wall-calendar.pdfIn PDF document text
    • http://www.gorillawalker.com/the-complete-guide-to-growing-your-own-hops-malts-and.pdfIn PDF document text
    • http://www.gorillawalker.com/little-cat-finger-puppet-book-little-finger-puppet-board-books.pdfIn PDF document text
    • http://www.gorillawalker.com/canon-gloria-together-we-sing-series-michael-haydn-2-part.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

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