Malicious PDF — malware analysis report

Static analysis result for SHA-256 25387d134c6f09b7…

MALICIOUS

PDF

40.9 KB Created: 2018-11-30 20:58:54 +03:00 Authoring application: - (via Acrobat Distiller 5.0 (Windows))
MD5: f30ea299bae493d33d00f13964f92dc0 SHA-1: d2e52c71396e0f14dbb157f6d2a91bb03e8bf448 SHA-256: 25387d134c6f09b73731474132072bf1c581d259907562828f0a26573a6f77fc
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, hosted on the domain 'gorillawalker.com'. This technique is often used to create link farms for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/last-laughs-studies-in-gender-and-culture.pdf
    • http://www.gorillawalker.com/lebanese-university-an-entry-from-macmillan-reference-usa-s-encyclopedia.pdf
    • http://www.gorillawalker.com/robert-bresson-a-passion-for-film.pdf
    • http://www.gorillawalker.com/iphone-the-missing-manual.pdf
    • http://www.gorillawalker.com/202-science-investigations-exciting-adventures-in-earth-life-and-physical.pdf
    • http://www.gorillawalker.com/aqu-se-baila-el-tango-una-etnograf-a-de-las.pdf
    • http://www.gorillawalker.com/heart-canals.pdf
    • http://www.gorillawalker.com/314-book-2-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/the-love-and-relationship-personality-test-practical-handwriting-analysis.pdf
    • http://www.gorillawalker.com/behind-the-design-designers-on-designing-design-concepts.pdf
    • http://www.gorillawalker.com/america-s-first-warriors-native-americans-and-iraq.pdf
    • http://www.gorillawalker.com/daniel-the-prophet.pdf
    • http://www.gorillawalker.com/american-piano-trios.pdf
    • http://www.gorillawalker.com/tracker-a-foreigner-novel.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-animals.pdf
    • http://www.gorillawalker.com/band-plus-book-1-french-horn-bm-209.pdf
    • http://www.gorillawalker.com/the-ascendant.pdf
    • http://www.gorillawalker.com/cupcakes-ideas-creativas-que-funcionan-spanish-edition.pdf
    • http://www.gorillawalker.com/the-practical-preppers-complete-guide-to-disaster-preparedness.pdf
    • http://www.gorillawalker.com/i-love-you-jesus-the-story-of-mary-s-gift.pdf
    • http://www.gorillawalker.com/samworth-books-a-descriptive-biography.pdf
    • http://www.gorillawalker.com/100-love-sonnets-a-spanish-150-english-bilingual-edition-exile.pdf
    • http://www.gorillawalker.com/dallas-cowboys-nfl-s-greatest-teams.pdf
    • http://www.gorillawalker.com/auditing-and-assurance-2ed-kindle-edition.pdf
    • http://www.gorillawalker.com/introduction-to-the-korean-alphabet-hangeul-korean-made-easy-starter.pdf
    • http://www.gorillawalker.com/vlsi-interview-questions-with-answers-kindle-edition.pdf
    • http://www.gorillawalker.com/korea-it-wasn-t-all-chinese-and-frostbite.pdf
    • http://www.gorillawalker.com/portugal-map-travel-reference-map.pdf
    • http://www.gorillawalker.com/state-names-flags-seals-songs-birds-flowers-and-other-symbols.pdf
    • http://www.gorillawalker.com/australia-japan-and-southeast-asia-early-post-war-initiatives-in.pdf
    • http://www.gorillawalker.com/time-to-go-three-plays-on-death-and-dying-with.pdf
    • http://www.gorillawalker.com/federal-civil-rules-supplement-2014-2015-selected-statutes.pdf
    • http://www.gorillawalker.com/the-spies-of-warsaw-a-novel.pdf
    • http://www.gorillawalker.com/the-life-and-times-of-reverend-n-c-denson.pdf
    • http://www.gorillawalker.com/the-young-magician-vol-5.pdf
    • http://www.gorillawalker.com/chemistry-matters-textbook-g-c-e-level-o.pdf
    • http://www.gorillawalker.com/the-bethesda-handbook-of-clinical-hematology-kindle-edition.pdf
    • http://www.gorillawalker.com/the-lost-fleet-victorious-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/recipes-from-the-hearth-at-home-with-south-african-icons.pdf
    • http://www.gorillawalker.com/la-europa-ex.pdf
    • http://www.gorillawalker.com/aqu-se-baila-el-tango-una-etnograf-a-de
    • 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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