Malicious PDF — malware analysis report

Static analysis result for SHA-256 83241283ca007f09…

MALICIOUS

PDF

43.0 KB Created: 2019-05-05 01:34:21 +03:00 Authoring application: - (via ABBYY FineReader 11)
MD5: 0cda78b8c75919900c8f090c5c05a161 SHA-1: e463af2779423455987ca6038027aa3dbe7b3c98 SHA-256: 83241283ca007f097b540b5a3fe094eb2e91c31f0dad4800f9c83ec5497b200e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute 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 the link farm.

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/the-chemical-bond-chemical-bonding-across-the-periodic-table.pdf
    • http://www.gorillawalker.com/konzernrechnungslegung-in-der-republik-korea-und-in-deutschland-darstellung-vergleich.pdf
    • http://www.gorillawalker.com/authority-without-power-law-and-the-japanese-paradox-studies-on.pdf
    • http://www.gorillawalker.com/bucharest-bucuresti-romania-1-20-000-pocket-street-map.pdf
    • http://www.gorillawalker.com/crave-vancouver-the-urban-girl-s-manifesto-3rd-ed.pdf
    • http://www.gorillawalker.com/a-cat-and-a-dog.pdf
    • http://www.gorillawalker.com/glenn-ligon-america-whitney-museum-of-american-art.pdf
    • http://www.gorillawalker.com/lonely-planet-usa-s-best-cross-country-road-trips-7.pdf
    • http://www.gorillawalker.com/surfer-girls-unknown-binding.pdf
    • http://www.gorillawalker.com/motivation-im-unterricht-am-beispiel-des-neuen-f-cherverbundes-mensch.pdf
    • http://www.gorillawalker.com/sex-in-america.pdf
    • http://www.gorillawalker.com/clarinet-duets-from-the-masters-vol-4-volume-4.pdf
    • http://www.gorillawalker.com/big-top-gender-swap-2.pdf
    • http://www.gorillawalker.com/biological-anthropology-plus-myanthrolab-with-etext-access-card-package-3rd.pdf
    • http://www.gorillawalker.com/a-guide-to-the-project-management-body-of-knowledge-pmbok.pdf
    • http://www.gorillawalker.com/bookkeeping-exercises.pdf
    • http://www.gorillawalker.com/intermediate-algebra-with-applications-visualization-books-a-la-carte-edition.pdf
    • http://www.gorillawalker.com/aprender-italiano-textos-paralelos-hist.pdf
    • http://www.gorillawalker.com/when-the-music-stops.pdf
    • http://www.gorillawalker.com/power-systems-applications-of-graph-theory-energy-science-engineering-and.pdf
    • http://www.gorillawalker.com/justification-by-faith-alone-in-christ-alone.pdf
    • http://www.gorillawalker.com/diesel-accumulator-fuel-injection-system-common-rail-technical-instruction-bosch.pdf
    • http://www.gorillawalker.com/data-driven-marketing-for-dummies.pdf
    • http://www.gorillawalker.com/diversity-at-kaizen-motors-gender-race-age-and-insecurity-in.pdf
    • http://www.gorillawalker.com/amsterdam-bartholomew-holiday-city-map.pdf
    • http://www.gorillawalker.com/hotel-california.pdf
    • http://www.gorillawalker.com/the-parent-connection-an-educator-s-guide-to-family-engagement.pdf
    • http://www.gorillawalker.com/the-rough-guide-to-canada.pdf
    • http://www.gorillawalker.com/after-the-funeral-collins-english-readers.pdf
    • http://www.gorillawalker.com/guide-to-academic-and-scientific-publication-how-to-get-your.pdf
    • http://www.gorillawalker.com/the-complete-idiot-s-guide-to-the-last-days-complete.pdf
    • http://www.gorillawalker.com/get-jammed-leftovers.pdf
    • http://www.gorillawalker.com/textbook-of-clinical-echocardiography-3e.pdf
    • http://www.gorillawalker.com/the-worldmakers-global-imagining-in-early-modern-europe.pdf
    • http://www.gorillawalker.com/crazy-new-life.pdf
    • http://www.gorillawalker.com/jews-of-brooklyn-brandeis-series-in-american-jewish-history-culture.pdf
    • http://www.gorillawalker.com/3d-book-of-hawaii-anaglyph-3d-images-of-hawaiian-architecture.pdf
    • http://www.gorillawalker.com/a-walking-tour-of-phoenix-arizona-look-up-america-kindle.pdf
    • http://www.gorillawalker.com/the-notrump-zone.pdf
    • http://www.gorillawalker.com/the-complete-maus-25th-anniversary-edition.pdf
    • http://www.gorillawalker.com/glen
    • 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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