Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b8960e3abe5d8c1…

MALICIOUS

PDF

44.0 KB Created: 2018-12-15 08:52:30 +03:00 Authoring application: - (via iText 2.1.0 (by lowagie.com))
MD5: 9a00065ee70e3322c01b790c54858e7b SHA-1: 670361f7a249dd600f6e3708a901bd90bd256354 SHA-256: 7b8960e3abe5d8c1b0151a1ca07cd1599af8870a9a6ec191323f5663a93d1d8e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. These links all point to the same domain, 'www.gorillawalker.com', suggesting a coordinated effort to manipulate search engine results or distribute content. While no scripts were explicitly extracted, the nature of the embedded links and the ML classifier's high confidence score point towards malicious intent, likely related to SEO spam or a content distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/high-resolution-nmr-techniques-in-organic-chemistry-tetrahedron-organic-chemistry.pdf
    • http://www.gorillawalker.com/blogging-for-profit-the-complete-idiot-s-guide-to-blogging.pdf
    • http://www.gorillawalker.com/pest-control-strategies-for-the-future.pdf
    • http://www.gorillawalker.com/rules-and-regulations-yosemite-national-park.pdf
    • http://www.gorillawalker.com/the-fabled-coast-legends-traditions-from-around-the-shores-of.pdf
    • http://www.gorillawalker.com/core-awareness-enhancing-yoga-pilates-exercise-and-dance-revised-by.pdf
    • http://www.gorillawalker.com/indra-girt-by-maruts.pdf
    • http://www.gorillawalker.com/sideline-help.pdf
    • http://www.gorillawalker.com/crossed-2-matched-trilogy.pdf
    • http://www.gorillawalker.com/fast-track-japanese-with-two-audio-cds-a-teach-yourself.pdf
    • http://www.gorillawalker.com/wrong-retro-games-you-messed-up-our-comic-book-heroes.pdf
    • http://www.gorillawalker.com/colts-fillies-2013-wall-calendar.pdf
    • http://www.gorillawalker.com/john-sinclair-folge-0469-t-dlicher-flammengru-german-edition.pdf
    • http://www.gorillawalker.com/beauty-mark-a-hostile-beauty-novel-volume-2.pdf
    • http://www.gorillawalker.com/overcoming-skin-problems-med-express.pdf
    • http://www.gorillawalker.com/kosten-und-leistungsrechnung-internes-rechnungswesen-f-r-industrie-und-handelsbetriebe.pdf
    • http://www.gorillawalker.com/critical-companion-to-dante-a-literary-reference-to-his-life.pdf
    • http://www.gorillawalker.com/the-candida-control-cookbook-what-you-should-know-and-what.pdf
    • http://www.gorillawalker.com/overcoming-our-evil-human-nature-and-spiritual-exercises-in-xunzi.pdf
    • http://www.gorillawalker.com/how-to-become-a-successful-forex-trader-volume-5-a.pdf
    • http://www.gorillawalker.com/formas-coleccion-spanish-edition.pdf
    • http://www.gorillawalker.com/last-of-the-summer-wine.pdf
    • http://www.gorillawalker.com/wonders-of-america-ready-to-read-value-pack-the-grand.pdf
    • http://www.gorillawalker.com/cost-effectiveness-strategies-to-treat-osteoporosis-in-elderly-women-original.pdf
    • http://www.gorillawalker.com/property-planning-and-compensation-reports-2010-vols-1-2-bound.pdf
    • http://www.gorillawalker.com/the-khrushchev-era-1953-1964.pdf
    • http://www.gorillawalker.com/averroes-tahafut-al-tahafut-vol-1-2-gibb-memorial-trust.pdf
    • http://www.gorillawalker.com/the-diary-and-letters-of-his-excellency-thomas-hutchinson-v2.pdf
    • http://www.gorillawalker.com/broadening-your-organizational-perspective.pdf
    • http://www.gorillawalker.com/strategies-to-the-prediction-mitigation-and-management-of-product-obsolescence.pdf
    • http://www.gorillawalker.com/the-duanwu-festival-qu-yuan-incl-1cd-chinese-edition.pdf
    • http://www.gorillawalker.com/yoga-for-equestrians-a-new-path-for-achieving-union-with.pdf
    • http://www.gorillawalker.com/the-hutchinson-concise-dictionary-of-word-origins-helicon-language.pdf
    • http://www.gorillawalker.com/paleo-bread-recipes-20-deliciously-simple-gluten-free-and-grain.pdf
    • http://www.gorillawalker.com/snakes-18-month-calendar-multilingual-edition.pdf
    • http://www.gorillawalker.com/ca-legal-and-search-seizure-field-sourceguide-2013-qwik-code.pdf
    • http://www.gorillawalker.com/the-lighthouse-companion-for-connecticut-and-rhode-island-the-lighthouse.pdf
    • http://www.gorillawalker.com/golfer-s-night-before-christmas-a.pdf
    • http://www.gorillawalker.com/who-would-jesus-kill-war-peace-and-the-christian-tradition.pdf
    • http://www.gorillawalker.com/rice-cook-s-encyclopedias.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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