Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b519e65b7dc9393…

MALICIOUS

PDF

44.6 KB Created: 2018-12-05 11:09:37 +03:00 Authoring application: - (via Haru Free PDF Library 2.1.0)
MD5: d842fac77c2b86ddd81948435abdf4e0 SHA-1: 3a8d58e5fd7a1425c3a552229da52a74294a3f77 SHA-256: 0b519e65b7dc93936f7a0354c79da80d94a94ffb23d23caf6bc120957371faa7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files on the domain 'gorillawalker.com'. This heuristic firing, combined with the ML classifier's high confidence, suggests the document is designed to manipulate search engine results or distribute potentially malicious content via these links. No scripts were extracted, but the embedded URLs themselves are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

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/republic-oxford-world-s-classics.pdf
    • http://www.gorillawalker.com/like-a-river-a-civil-war-novel.pdf
    • http://www.gorillawalker.com/from-inquiry-to-academic-writing-a-text-and-reader-2e.pdf
    • http://www.gorillawalker.com/quotes-and-idea-starters-for-preachings-and-teaching.pdf
    • http://www.gorillawalker.com/the-democratic-value-of-news-why-public-service-media-matter.pdf
    • http://www.gorillawalker.com/pindar-and-the-construction-of-syracusan-monarchy-in-the-fifth.pdf
    • http://www.gorillawalker.com/discrete-event-simulation-in-c-mcgraw-hill-international-series-in.pdf
    • http://www.gorillawalker.com/habibi-kindle-edition.pdf
    • http://www.gorillawalker.com/algorithms-for-vlsi-design-automoation.pdf
    • http://www.gorillawalker.com/back-pain-relief-how-to-relieve-back-pain-and-enjoy.pdf
    • http://www.gorillawalker.com/on-display-vol-2-sturmgeschutz-iii.pdf
    • http://www.gorillawalker.com/identification-and-evaluation-of-learning-disabilities-the-school-team-s.pdf
    • http://www.gorillawalker.com/leistungsf-higkeit-im-betrieb-kompendium-f-r-den-betriebspraktiker-zur.pdf
    • http://www.gorillawalker.com/neighborhood-planning-and-community-based-development-the-potential-and-limits.pdf
    • http://www.gorillawalker.com/the-correspondence-of-john-tyndall-volume-2-the-pickering-masters.pdf
    • http://www.gorillawalker.com/estado-critico-critical-spanish-edition.pdf
    • http://www.gorillawalker.com/demystifying-opioid-conversion-calculations-a-guide-for-effective-dosing-mcpherson.pdf
    • http://www.gorillawalker.com/action-stations-2-military-airfields-of-lincolnshire-and-the-east.pdf
    • http://www.gorillawalker.com/diccionario-t-cnico-de-aeron-utica-e-ingenier-a-aeroespacial.pdf
    • http://www.gorillawalker.com/independent-luxury-the-four-innovation-strategies-to-endure-in-the.pdf
    • http://www.gorillawalker.com/beautiful-decay-issue-r.pdf
    • http://www.gorillawalker.com/the-buddha-image-its-origin-and-development.pdf
    • http://www.gorillawalker.com/textile-conservator-s-manual-butterworth-heinemann-series-in-conservation-and.pdf
    • http://www.gorillawalker.com/between-man-and-beast-an-unlikely-explorer-the-evolution-debates.pdf
    • http://www.gorillawalker.com/administrative-law-of-the-european-union-its-member-states-and.pdf
    • http://www.gorillawalker.com/after-america-get-ready-for-armageddon.pdf
    • http://www.gorillawalker.com/stencil-wars-pocketart-the-ultimate-book-on-star-wars-inspired.pdf
    • http://www.gorillawalker.com/a-history-of-archaeological-thought.pdf
    • http://www.gorillawalker.com/fodor-s-montreal-and-quebec-city-2006-fodor-s-gold.pdf
    • http://www.gorillawalker.com/royalty-to-be-sinclair-volume-4.pdf
    • http://www.gorillawalker.com/intracellular-mechanisms-for-neuritogenesis.pdf
    • http://www.gorillawalker.com/the-writing-of-fiction.pdf
    • http://www.gorillawalker.com/counseling-women.pdf
    • http://www.gorillawalker.com/vectors-tensors-and-the-basic-equations-of-fluid-mechanics.pdf
    • http://www.gorillawalker.com/the-charmed-kitchen-cooking-with-herbs-and-spices.pdf
    • http://www.gorillawalker.com/alfred-publishing-00-hab00002-drum-method-elementary-music-book.pdf
    • http://www.gorillawalker.com/sourcebook-for-ancient-mesopotamian-medicine-writings-from-the-ancient-world.pdf
    • http://www.gorillawalker.com/menu-del-dia-more-than-100-classic-authentic-recipes-from.pdf
    • http://www.gorillawalker.com/the-suppression-of-the-atlantic-slave-trade-british-policies-practices.pdf
    • http://www.gorillawalker.com/the-business-of-children-s-entertainment.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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