Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e7f99e545e00a50…

MALICIOUS

PDF

44.4 KB Created: 2019-03-18 06:17:48 +03:00 Authoring application: Microsoft® Word 2010 (via Acrobat Distiller 11.0 (Windows))
MD5: 5cc1b9f107f91dd5da9efe1a04c0e786 SHA-1: 8ab71d7d371926daec724b63b21edb46aaf1cef7 SHA-256: 1e7f99e545e00a50d3785146204ea21115e3c7bd788ddf3dc24388d933fb1ff8
60 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files, primarily hosted on 'www.gorillawalker.com'. This heuristic firing suggests a link farm or SEO manipulation tactic. The document body is heavily obfuscated and unreadable, providing no direct clues about the intended lure. Given the nature of the links, the primary attack pattern is likely to be directing users to a large collection of documents, potentially for malicious SEO or to host further malicious content.

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/plant-invaders-watts-library.pdf
    • http://www.gorillawalker.com/japanese-lonely-planet-phrasebook.pdf
    • http://www.gorillawalker.com/den-glemte-tradisjonen-oppkomst-og-utvikling-av-en-nasjonal-landskapsfotografi.pdf
    • http://www.gorillawalker.com/early-stage-venture-capital-in-europe-the-case-of-germany.pdf
    • http://www.gorillawalker.com/the-life-and-death-of-mahatma-gandhi-the-robert-payne.pdf
    • http://www.gorillawalker.com/a-bibliography-of-british-geomorphology-compiled-by-members-of-the.pdf
    • http://www.gorillawalker.com/winning-chess-traps-for-juniors-tactics-in-the-opening.pdf
    • http://www.gorillawalker.com/evidence-based-reading-grade-k-applying-the-standards.pdf
    • http://www.gorillawalker.com/the-future-of-boards-meeting-the-governance-challenges-of-the.pdf
    • http://www.gorillawalker.com/underwater-communications-hand-signals-for-scuba-divers-second-edition-1984.pdf
    • http://www.gorillawalker.com/not-my-kid.pdf
    • http://www.gorillawalker.com/construction-management-fundamentals-mcgraw-hill-series-in-civil-engineering.pdf
    • http://www.gorillawalker.com/introduction-to-seismology-wissenschaft-und-kultur.pdf
    • http://www.gorillawalker.com/les-guides-bleus-provence-cote-d-azur.pdf
    • http://www.gorillawalker.com/the-history-of-television-1880-to-1941.pdf
    • http://www.gorillawalker.com/elementary-cryptanalysis-a-mathematical-approach-new-mathematical-library.pdf
    • http://www.gorillawalker.com/specters-of-mother-india-the-global-restructuring-of-an-empire.pdf
    • http://www.gorillawalker.com/world-music-balkan-play-along-saxophone.pdf
    • http://www.gorillawalker.com/the-acquisition-and-cataloging-of-books.pdf
    • http://www.gorillawalker.com/the-world-crisis-volume-iv-1918-1928-the-aftermath-bloomsbury.pdf
    • http://www.gorillawalker.com/theme-ideas-handbook-for-meetings-conferences-and-events-kindle-edition.pdf
    • http://www.gorillawalker.com/paul-s-shipwreck.pdf
    • http://www.gorillawalker.com/the-big-book-of-reiki-symbols-the-spiritual-transition-of.pdf
    • http://www.gorillawalker.com/the-buffalo-soldiers-their-epic-story-and-major-campaigns.pdf
    • http://www.gorillawalker.com/easyfinder-jackson-rand-mcnally-streetfinder.pdf
    • http://www.gorillawalker.com/disney-s-little-einsteins-quincy-and-the-dinosaurs-little-einsteins.pdf
    • http://www.gorillawalker.com/the-csx-clinchfield-route-in-the-21st-century-railroads-past.pdf
    • http://www.gorillawalker.com/the-gold-silver-investing-kit-wholesalegoldgroup-com-the-why-what.pdf
    • http://www.gorillawalker.com/pools-of-light.pdf
    • http://www.gorillawalker.com/arbetarkultur-goteborg-1890-skrifter-fran-etnologiska-foreningen-i-vastsverige-swedish.pdf
    • http://www.gorillawalker.com/california-5th-grade-math-test-prep-common-core-learning-standards.pdf
    • http://www.gorillawalker.com/post-offices-of-europe-18-ltsup-th-lt-sup-21.pdf
    • http://www.gorillawalker.com/cat-up-a-tree.pdf
    • http://www.gorillawalker.com/fantastic-facts-about-chinchillas-illustrated-fun-learning-for-kids.pdf
    • http://www.gorillawalker.com/dr-pestana-s-surgery-notes-top-180-vignettes-for-the.pdf
    • http://www.gorillawalker.com/statistical-genomics-linkage-mapping-and-qtl-analysis.pdf
    • http://www.gorillawalker.com/the-delfly-design-aerodynamics-and-artificial-intelligence-of-a-flapping.pdf
    • http://www.gorillawalker.com/bolt-by-dick-francis-unabridged-audio-book-8cd-s.pdf
    • http://www.gorillawalker.com/father-bear-comes-home-i-can-read-book-1.pdf
    • http://www.gorillawalker.com/ice-cream-town.pdf
    • http://www.gorillawalker.com/early-stage-venture-capital-in-europe-the-case-of
    • 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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