Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0b16c772009a5f6…

MALICIOUS

PDF

41.6 KB Created: 2018-12-07 18:27:20 +03:00 Authoring application: - (via Acrobat Distiller 5.0 (Windows))
MD5: c80d187101b2ed31f1e0c409dd5d55e2 SHA-1: 59d4f4e952e2d1b145641aa6d19ccff912ed452b SHA-256: b0b16c772009a5f65be6226459edd257d3b172eb6e6940eb52ef58739294beae
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, primarily hosted on www.gorillawalker.com. This suggests a link farm or redirection strategy, likely intended to drive traffic to potentially malicious or deceptive content. No scripts were extracted, and the document body was unreadable.

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/the-pregnancy-companion-a-faith-filled-guide-for-your-journey.pdf
    • http://www.gorillawalker.com/men-at-arms-discworld-book-15-kindle-edition.pdf
    • http://www.gorillawalker.com/the-truth-about-false-memory-syndrome.pdf
    • http://www.gorillawalker.com/bollywood-behind-the-scenes-beyond-the-stars.pdf
    • http://www.gorillawalker.com/first-class.pdf
    • http://www.gorillawalker.com/negotiating-your-salary-how-to-make-1000-a-minute-revised.pdf
    • http://www.gorillawalker.com/firstflight-the-high-frontier-trilogy-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/a-cat-s-tales-a-collection-of-improbable-parables-from.pdf
    • http://www.gorillawalker.com/city-life-photo-gallery-kindle-edition.pdf
    • http://www.gorillawalker.com/corrosion-inhibitors-principles-and-applications.pdf
    • http://www.gorillawalker.com/vocabulary-links-for-english-language-development-level-d-grade-4.pdf
    • http://www.gorillawalker.com/twentieth-century-castles-in-britain.pdf
    • http://www.gorillawalker.com/john-coltrane-plays-giant-steps-tenor-saxophone-artist-transcriptions.pdf
    • http://www.gorillawalker.com/catalogue-of-law-books.pdf
    • http://www.gorillawalker.com/china-activity-book-arts-crafts-cooking-and-historical-aids.pdf
    • http://www.gorillawalker.com/divine-command-ethics-jewish-and-christian-perspectives.pdf
    • http://www.gorillawalker.com/sing-your-way-to-chinese-chinese-edition.pdf
    • http://www.gorillawalker.com/the-firm.pdf
    • http://www.gorillawalker.com/bicycle-quarterly-s-calendar-of-classic-bicycles-2013-wall.pdf
    • http://www.gorillawalker.com/principles-of-american-journalism-an-introduction.pdf
    • http://www.gorillawalker.com/the-short-and-tragic-life-of-robert-peace-a-brilliant.pdf
    • http://www.gorillawalker.com/deep-in-the-heart.pdf
    • http://www.gorillawalker.com/hour-of-the-unexpected.pdf
    • http://www.gorillawalker.com/50-new-anthems-for-mixed-voices.pdf
    • http://www.gorillawalker.com/tunnel-lining-design-guide.pdf
    • http://www.gorillawalker.com/six-impossible-things-before-breakfast-the-evolutionary-origins-of-belief.pdf
    • http://www.gorillawalker.com/vietnamerica-el-viaje-de-una-familia-the-journey-of-a.pdf
    • http://www.gorillawalker.com/sexuality-what-is-health.pdf
    • http://www.gorillawalker.com/accurizing-the-factory-rifle.pdf
    • http://www.gorillawalker.com/real-analysis-and-foundations-second-edition-textbooks-in-mathematics.pdf
    • http://www.gorillawalker.com/understanding-autism-the-essential-guide-for-parents.pdf
    • http://www.gorillawalker.com/photo-book-dream-trip-5-yoskoi-festival-in-sendai-city.pdf
    • http://www.gorillawalker.com/beyond-la-frontera-the-history-of-mexico-u-s-migration.pdf
    • http://www.gorillawalker.com/physics-in-the-automotive-industry-aip-conference-proceedings.pdf
    • http://www.gorillawalker.com/rigby-on-our-way-to-english-bookroom-package-grade-5.pdf
    • http://www.gorillawalker.com/the-universe-leading-scientists-explore-the-origin-mysteries-and-future.pdf
    • http://www.gorillawalker.com/knowledge-and-reality-a-criticism-of-mr-f-h-bradley.pdf
    • http://www.gorillawalker.com/the-hardness-factor-kindle-edition.pdf
    • http://www.gorillawalker.com/jabberwocky-and-other-poems-dover-thrift-editions.pdf
    • http://www.gorillawalker.com/the-book-of-psalms-a-new-translation-with-introductions-and.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/