Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c2b5141892c6f65…

MALICIOUS

PDF

44.5 KB Created: 2019-02-13 22:34:37 +03:00 Authoring application: Adobe Acrobat 7.05 (via Adobe Acrobat 7.05 Paper Capture Plug-in)
MD5: 91d805a96f0410981c2b9a5c1af96896 SHA-1: 391e1cd2293f95f17d18fb0ed45fc4bbe31f4c1d SHA-256: 7c2b5141892c6f65bfc608beae56f36bcdfb7629cb0b21413e7e9b9425a11b47
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, all hosted on the same domain. This behavior is indicative of a link farm, potentially used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

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/karate-get-going-martial-arts.pdf
    • http://www.gorillawalker.com/jon-bonnell-s-texas-favorites.pdf
    • http://www.gorillawalker.com/principles-of-measurement-systems-edition.pdf
    • http://www.gorillawalker.com/lost-my-girlfriend-to-black-dorm-roommate.pdf
    • http://www.gorillawalker.com/america-s-founding-food.pdf
    • http://www.gorillawalker.com/evidence-from-scripture-and-history-of-the-second-coming-of.pdf
    • http://www.gorillawalker.com/the-special-how-to-earn-extra-money-marketing-and-success.pdf
    • http://www.gorillawalker.com/principles-of-architectural-detailing.pdf
    • http://www.gorillawalker.com/frommer-s-alaska-2007-frommer-s-complete-guides.pdf
    • http://www.gorillawalker.com/finding-samantha-kindle-edition.pdf
    • http://www.gorillawalker.com/habitus-in-habitat-iii-synaesthesia-and-kinaesthetics-natur-wissenschaft-und.pdf
    • http://www.gorillawalker.com/e-commerce-law-national-and-transnational-topics-and-perspectives.pdf
    • http://www.gorillawalker.com/behind-closed-doors-a-novel-briarstone.pdf
    • http://www.gorillawalker.com/sustainability-assessment-pluralism-practice-and-progress-natural-and-built-environment.pdf
    • http://www.gorillawalker.com/diy-wood-pallet-projects-box-set-3-in-1-73.pdf
    • http://www.gorillawalker.com/the-ancient-sun-kingdoms-of-the-americas-aztec-maya-inca.pdf
    • http://www.gorillawalker.com/al-surah-fi-al-shir-al-sudani-al-maktabah-al.pdf
    • http://www.gorillawalker.com/captain-pantoja-and-the-special-service-a-novel.pdf
    • http://www.gorillawalker.com/heavenly-angel-divine-creek-ranch-3-the-heather-rainier-collection.pdf
    • http://www.gorillawalker.com/the-elliptical-noun-phrase-in-english-structure-and-use.pdf
    • http://www.gorillawalker.com/good-food-in-mexico-city-food-stalls-fondas-and-fine.pdf
    • http://www.gorillawalker.com/sqa-past-papers-in-intermediate-1-english-2000-2003-plus.pdf
    • http://www.gorillawalker.com/carne-de-perro-spanish-edition.pdf
    • http://www.gorillawalker.com/walt-disney-history-s-all-stars.pdf
    • http://www.gorillawalker.com/adventures-in-paradise-memoirs-of-an-entrepreneur-in-the-yucatan.pdf
    • http://www.gorillawalker.com/the-building-of-hong-kong-constructing-hong-kong-through-the.pdf
    • http://www.gorillawalker.com/pat-respiratory-func-emphysema.pdf
    • http://www.gorillawalker.com/keys-to-effective-learning-study-skills-and-habits-for-success.pdf
    • http://www.gorillawalker.com/sanctus-ssa-ssa-sheet-music.pdf
    • http://www.gorillawalker.com/the-physics-of-stars.pdf
    • http://www.gorillawalker.com/color-your-stress-away-geometrical-patterns-coloring-book-for-adults.pdf
    • http://www.gorillawalker.com/system-specific-pi-control-theory-for-fluid-and-motion-systems.pdf
    • http://www.gorillawalker.com/koreans-in-japan-critical-voices-from-the-margin-routledge-studies.pdf
    • http://www.gorillawalker.com/treasures-of-darkness-a-nine-week-bible-study.pdf
    • http://www.gorillawalker.com/photoshop-elements-9-the-missing-manual.pdf
    • http://www.gorillawalker.com/new-proclamation-year-b-2000-easter-through-pentecost.pdf
    • http://www.gorillawalker.com/communication-and-swallowing-in-parkinson-disease.pdf
    • http://www.gorillawalker.com/a-basic-guide-to-equestrian-olympic-guides.pdf
    • http://www.gorillawalker.com/negotiating-for-success-essential-strategies-and-skills-kindle-edition.pdf
    • http://www.gorillawalker.com/catholic-high-school-entrance-exams-w-cd-rom-2nd-ed.pdf
    • http://www.gorillawalker
    • 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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