Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c54820c6b632777…

MALICIOUS

PDF

44.0 KB Created: 2018-11-26 20:05:33 +03:00 Authoring application: - (via Acrobat Web Capture 5.0)
MD5: 06e7764c34b85bb1df44a245515da392 SHA-1: 205c6cb17f0d28c7c7dcb0f3a49c27276ba826d4 SHA-256: 9c54820c6b6327778fe0480a4e5803477f3442804245195e689a9b7ecfd58e99
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs, forming a link farm hosted on www.gorillawalker.com. This suggests the document is designed to redirect users to potentially harmful content or to manipulate search engine rankings. No scripts were extracted from this sample.

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/the-cosmic-connection-an-extraterrestrial-perspective.pdf
    • http://www.gorillawalker.com/windham-hill-piano-sampler-piano-solo.pdf
    • http://www.gorillawalker.com/book-of-tea-01-by-okakura-kakuzo-paperback-2001.pdf
    • http://www.gorillawalker.com/on-the-effects-of-the-attitudes-toward-risk-and-corporate.pdf
    • http://www.gorillawalker.com/potty-time-lift-the-flap-book.pdf
    • http://www.gorillawalker.com/savagery-a-dark-erotic-romance-kindle-edition.pdf
    • http://www.gorillawalker.com/cybernetics-second-edition-or-the-control-and-communication-in-the.pdf
    • http://www.gorillawalker.com/cress-in-waterbee-the-cress-series-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/memory-your-annual-guide-to-alzheimer-s-disease-and-dementia.pdf
    • http://www.gorillawalker.com/the-skinny-blend-active-personal-blender-recipe-book-great-tasting.pdf
    • http://www.gorillawalker.com/the-puzzle-post-puzzles-on-the-go-workout-challenge.pdf
    • http://www.gorillawalker.com/the-paths-of-inland-commerce-a-chronicle-of-trail-road.pdf
    • http://www.gorillawalker.com/composing-myself-a-passage-through-postpartum-depression.pdf
    • http://www.gorillawalker.com/reference-book-of-american-business-utah-third-quarter.pdf
    • http://www.gorillawalker.com/atentado-del-autor-best-seller-de-la-trilog-a-ira.pdf
    • http://www.gorillawalker.com/taking-sides-clashing-views-in-race-and-ethnicity.pdf
    • http://www.gorillawalker.com/physics-for-scientists-and-engineers-chapters-1-39-available-2010.pdf
    • http://www.gorillawalker.com/in-search-of-pegasus-the-canadian-airborne-experience-1942-1999.pdf
    • http://www.gorillawalker.com/caribbean-on-a-budget.pdf
    • http://www.gorillawalker.com/good-kids-from-bad-neighborhoods-successful-development-in-social-context.pdf
    • http://www.gorillawalker.com/detras-de-la-puerta-spanish-edition.pdf
    • http://www.gorillawalker.com/fundamentals-of-hvac-r-and-myhvaclab-pegasus-student-access-code.pdf
    • http://www.gorillawalker.com/promised-marriage-in-aboriginal-society-reference-on-aboriginal-customary-law.pdf
    • http://www.gorillawalker.com/student-suppport-benefits-handbook-scotland-2004-05.pdf
    • http://www.gorillawalker.com/graffiti-glossary-kindle-edition.pdf
    • http://www.gorillawalker.com/dalit-literatures-in-india.pdf
    • http://www.gorillawalker.com/media-law-in-australia.pdf
    • http://www.gorillawalker.com/financial-and-commercial-policy-under-the-cromwellian-protectorate.pdf
    • http://www.gorillawalker.com/six-sigma-for-small-business.pdf
    • http://www.gorillawalker.com/twentieth-century-impressions-of-ceylon.pdf
    • http://www.gorillawalker.com/the-low-carb-myth-free-yourself-from-carb-myths-and.pdf
    • http://www.gorillawalker.com/low-carb-one-pot-cookbook-quick-and-easy-recipes-in.pdf
    • http://www.gorillawalker.com/hausdorff-on-ordered-sets-history-of-mathematics-history-of-mathematics.pdf
    • http://www.gorillawalker.com/understanding-modern-real-estate-transactions.pdf
    • http://www.gorillawalker.com/wildlife-and-woodlot-management-a-comprehensive-handbook-for-food-plot.pdf
    • http://www.gorillawalker.com/call-me-ixchel-mayan-goddess-of-the-moon-a-treasury.pdf
    • http://www.gorillawalker.com/the-four-ancient-books-of-wales-containing-the-cymric-poems.pdf
    • http://www.gorillawalker.com/kultus-thaddeus-blaklok.pdf
    • http://www.gorillawalker.com/handbook-of-reinsurance-law.pdf
    • http://www.gorillawalker.com/ergonomic-design-for-people-at-work.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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