Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca21a645ea0f2cb7…

MALICIOUS

PDF

43.6 KB Created: 2019-04-08 09:01:00 +03:00 Authoring application: - (via Acrobat Web Capture 5.0)
MD5: a035a2392e1d95f849b32318cd89b81f SHA-1: 78160177f2345b03f2711310a7280a1b4d6275b6 SHA-256: ca21a645ea0f2cb7adaa72bc55a62ef535f6fc7814d1a5255caa53214cf42d9c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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-retail-jungle-tales-of-adventure-and-strategies-to-assist.pdf
    • http://www.gorillawalker.com/river-rafting-jane-smisor-bastien-level-3-piano-solo.pdf
    • http://www.gorillawalker.com/approaches-to-hungarian-volume-14-papers-from-the-2013-piliscsaba.pdf
    • http://www.gorillawalker.com/handbook-of-rotordynamics.pdf
    • http://www.gorillawalker.com/mix-tape-the-art-of-cassette-culture.pdf
    • http://www.gorillawalker.com/f-p-ramsey-philosophical-papers.pdf
    • http://www.gorillawalker.com/advances-in-dynamic-games-applications-to-economics-management-science-engineering.pdf
    • http://www.gorillawalker.com/the-ultimate-youth-choir-christmas-book-sab.pdf
    • http://www.gorillawalker.com/alaska-memories-adventure-in-the-wilds-of-alaska.pdf
    • http://www.gorillawalker.com/glencoe-teen-health-spanish-summaries-quizzes-and-activities-audiocassette-instructor.pdf
    • http://www.gorillawalker.com/employment-law-palgrave-macmillan-law-masters.pdf
    • http://www.gorillawalker.com/governance-as-leadership-reframing-the-work-of-nonprofit-boards.pdf
    • http://www.gorillawalker.com/the-red-rooster-scare-making-cinema-american-1900-1910.pdf
    • http://www.gorillawalker.com/classic-children-s-tales-150-years-of-frederick-warne.pdf
    • http://www.gorillawalker.com/bio-201-bio-202-human-anatomy-and-human-physiology-rio.pdf
    • http://www.gorillawalker.com/vision-and-the-art-of-drawing.pdf
    • http://www.gorillawalker.com/victorian-designs-stained-glass-coloring-book-coloring-books.pdf
    • http://www.gorillawalker.com/electrical-injuries-medical-and-bioengineering-aspects-second-edition.pdf
    • http://www.gorillawalker.com/reckless-following-jesus-to-the-point-of-no-return.pdf
    • http://www.gorillawalker.com/fidelio-libretto-german-introduction-commentary.pdf
    • http://www.gorillawalker.com/systems-analysis-and-design-with-uml.pdf
    • http://www.gorillawalker.com/photographing-the-world-a-guide-to-photographing-201-of-the.pdf
    • http://www.gorillawalker.com/diva-technical-report-no-4-avian-diversity-in-the-ecuadorian.pdf
    • http://www.gorillawalker.com/attracting-terrific-people-how-to-find-and-keep-the-people.pdf
    • http://www.gorillawalker.com/nan-core.pdf
    • http://www.gorillawalker.com/2011-on-this-day-music-box-calendar.pdf
    • http://www.gorillawalker.com/dharma-of-a-disciple.pdf
    • http://www.gorillawalker.com/drazen-the-remarkable-life-legacy-of-the-mozart-of-basketball.pdf
    • http://www.gorillawalker.com/children-s-books-the-very-helpful-monsters-very-funny-bedtime.pdf
    • http://www.gorillawalker.com/pdr-pharmacopoeia-pocket-dosing-guide-2010.pdf
    • http://www.gorillawalker.com/how-to-build-model-railroad-benchwork-second-edition-model-railroader.pdf
    • http://www.gorillawalker.com/manufacturing-career-launcher.pdf
    • http://www.gorillawalker.com/the-legend-of-drizzt-the-collected-stories-unabridged-audible-audio.pdf
    • http://www.gorillawalker.com/dark-rival-the-masters-of-time-book-2.pdf
    • http://www.gorillawalker.com/water-treatment-fundamentals-a-study-guide-seventh-edition-2004.pdf
    • http://www.gorillawalker.com/adagio-op-56-score-faber-edition.pdf
    • http://www.gorillawalker.com/internally-heated-convection-and-rayleigh-b-nard-convection-springerbriefs-in.pdf
    • http://www.gorillawalker.com/karen-brown-s-italy-charming-bed-breakfasts-2005-charming-bed.pdf
    • http://www.gorillawalker.com/the-tunnels-of-cu-chi-the-untold-story-of-vietnam.pdf
    • http://www.gorillawalker.com/the-flexible-enterprise-flexible-systems-management.pdf
    • http://www.gorillawalker.com/advances-in-dynamic-games-applications-to-economics-management-science-engineeri
    • 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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