Malicious PDF — malware analysis report

Static analysis result for SHA-256 073ecb99c2c1cf7c…

MALICIOUS

PDF

46.2 KB Created: 2019-03-17 08:21:01 +03:00 Authoring application: Acrobat PDFMaker 10.1 for Word (via Adobe PDF Library 10.0)
MD5: 51cf9a6440c06c4464794ac725761dd2 SHA-1: 06a0e5832911b2c4bb10ce903be362d9eab6782c SHA-256: 073ecb99c2c1cf7c2af5831c9e4e312a913bc731a5a36944c2621e7bc209a6e3
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 hosted on 'gorillawalker.com'. This is indicative of a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the PDF structure and the sheer volume of external links suggest an attempt to drive traffic or distribute content, potentially malicious, through indirect means. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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/field-work-modern-poems-from-eastern-forests.pdf
    • http://www.gorillawalker.com/top-10-vancouver-victoria-eyewitness-top-10-travel-guides-kindle.pdf
    • http://www.gorillawalker.com/integrative-psychotherapy-toward-a-comprehensive-christian-approach.pdf
    • http://www.gorillawalker.com/fearproof-your-life-how-to-thrive-in-a-world-addicted.pdf
    • http://www.gorillawalker.com/princess-on-the-brink-princess-diaries-vol-8.pdf
    • http://www.gorillawalker.com/laboratory-safety-for-chemistry-students.pdf
    • http://www.gorillawalker.com/healing-ancestral-karma-free-yourself-from-unhealthy-family-patterns-kindle.pdf
    • http://www.gorillawalker.com/whipped-creme.pdf
    • http://www.gorillawalker.com/mystatlab-for-business-statistics-valuepack-access-card.pdf
    • http://www.gorillawalker.com/donkey-poker-crushing-low-stakes-live-no-limit-hold-em.pdf
    • http://www.gorillawalker.com/journal-of-construction-engineering-and-management-vol-111-no-3.pdf
    • http://www.gorillawalker.com/backcountry.pdf
    • http://www.gorillawalker.com/the-saxophone-handbook-complete-guide-to-tone-technique-performance-maintenance.pdf
    • http://www.gorillawalker.com/medieval-islamic-historiography-remembering-rebellion.pdf
    • http://www.gorillawalker.com/robotics-in-genitourinary-surgery.pdf
    • http://www.gorillawalker.com/understanding-osteoporosis-every-woman-s-guide-to-preventing-brittle-bones.pdf
    • http://www.gorillawalker.com/near-and-distant-neighbors-a-new-history-of-soviet-intelligence.pdf
    • http://www.gorillawalker.com/steck-vaughn-achieve-pennsylvania-student-edition-grade-7-reading.pdf
    • http://www.gorillawalker.com/bridges-over-water-understanding-transboundary-water-conflict-negotiation-and-cooperation.pdf
    • http://www.gorillawalker.com/the-secret-history-of-chiropractic-d-d-palmer-s-spiritual.pdf
    • http://www.gorillawalker.com/ashes-2011-england-s-record-breaking-series-victory.pdf
    • http://www.gorillawalker.com/the-paraguayan-question-the-alliance-between-brazil-the-argentine-confederation.pdf
    • http://www.gorillawalker.com/justinguitar-com-ukulele-songbook.pdf
    • http://www.gorillawalker.com/word-formation-in-the-roman-sermo-plebeius-an-historical-study.pdf
    • http://www.gorillawalker.com/therapeutic-recreation-program-design-principles-and-procedures-5th-edition.pdf
    • http://www.gorillawalker.com/chemistry-and-physics-for-nurse-anesthesia-a-student-centered-approach.pdf
    • http://www.gorillawalker.com/beat-the-devil-dark-forces-10.pdf
    • http://www.gorillawalker.com/animal-babies-in-rainforests.pdf
    • http://www.gorillawalker.com/101-investment-lessons-from-the-wizards-of-wall-street-the.pdf
    • http://www.gorillawalker.com/kids-first-cookbook-learning-to-cook-is-fun.pdf
    • http://www.gorillawalker.com/a-history-of-zen-buddhism.pdf
    • http://www.gorillawalker.com/cabin-in-the-woods-linda-s-erotic-vacation-surprise.pdf
    • http://www.gorillawalker.com/the-historical-roots-of-elementary-mathematics-dover-books-on-mathematics.pdf
    • http://www.gorillawalker.com/the-divided-kingdoms-kindle-edition.pdf
    • http://www.gorillawalker.com/the-big-fellow.pdf
    • http://www.gorillawalker.com/total-digimon-the-complete-player-and-collector-s-guide-to.pdf
    • http://www.gorillawalker.com/selling-the-invisible-a-field-guide-to-modern-marketing.pdf
    • http://www.gorillawalker.com/who-hops-quien-salta-lap-sized-board-book.pdf
    • http://www.gorillawalker.com/injunctions.pdf
    • http://www.gorillawalker.com/what-s-great-about-kansas-our-great-states.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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