Malicious PDF — malware analysis report

Static analysis result for SHA-256 585c44ee653dd339…

MALICIOUS

PDF

44.3 KB Created: 2018-11-15 19:33:42 +03:00 Authoring application: PFU ScanSnap Manager 4.2.14 (via Adobe PDF Scan Library 2.3)
MD5: 5f3d7611031e99d0a4f3d27693fd241f SHA-1: 1dc5b2f633f42f15bc532bbe31495e53fac425a7 SHA-256: 585c44ee653dd33912adc71d7610a594173ce416d0bbfbf6fee1ffae8e8286d4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or to distribute a large number of potentially malicious documents. The primary attack pattern involves leveraging a link farm to direct users to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/doing-magic-a-course-in-manifesting-an-exceptional-life-book.pdf
    • http://www.gorillawalker.com/college-university-curriculum-placing-learning-at-the-epicenter-of-courses.pdf
    • http://www.gorillawalker.com/classical-dynamics-of-particles-and-systems.pdf
    • http://www.gorillawalker.com/anna-karenine-int-grale-les-2-volumes-french-edition.pdf
    • http://www.gorillawalker.com/50s-60s-rock-n-roll-classics-easy-piano-warner-bros.pdf
    • http://www.gorillawalker.com/oxford-dictionary-of-american-art-and-artists-oxford-paperback-reference.pdf
    • http://www.gorillawalker.com/arq-architectural-research-quarterly-volume-4-part-1-v-4.pdf
    • http://www.gorillawalker.com/hornet-flight.pdf
    • http://www.gorillawalker.com/the-honest-truth.pdf
    • http://www.gorillawalker.com/cine-de-vampiros-spanish-edition.pdf
    • http://www.gorillawalker.com/a-dictionary-of-musical-themes-the-music-of-more-than.pdf
    • http://www.gorillawalker.com/making-sense-of-life-explaining-biological-development-with-models-metaphors.pdf
    • http://www.gorillawalker.com/belgium-and-holland-including-the-grand-duchy-of-luxembourg-primary.pdf
    • http://www.gorillawalker.com/if-there-be-thorns-dollanganger-book-3-kindle-edition.pdf
    • http://www.gorillawalker.com/the-strategic-designer-tools-techniques-for-managing-the-design-process.pdf
    • http://www.gorillawalker.com/small-boat-building-outing-handbooks.pdf
    • http://www.gorillawalker.com/nicole-graniero-her-effortless-lyricism-and-musicality-make-this-abt.pdf
    • http://www.gorillawalker.com/aids-caregiving-lessons-for-second-decade.pdf
    • http://www.gorillawalker.com/halifax-discovering-its-heritage-formac-illustrated-history.pdf
    • http://www.gorillawalker.com/caillou-tidies-his-toys.pdf
    • http://www.gorillawalker.com/computer-analysis-of-structural-systems.pdf
    • http://www.gorillawalker.com/biosignal-and-medical-image-processing-third-edition.pdf
    • http://www.gorillawalker.com/dzogchen-teachings.pdf
    • http://www.gorillawalker.com/teaching-language-arts-a-student-centered-classroom-6th-edition.pdf
    • http://www.gorillawalker.com/white-nationalism-black-interests-conservative-public-policy-and-the-black.pdf
    • http://www.gorillawalker.com/use-abcs-to-guide-treatment-of-solitary-pulmonary-nodules-an.pdf
    • http://www.gorillawalker.com/gypsies-world-of-darkness.pdf
    • http://www.gorillawalker.com/fire-service-administration.pdf
    • http://www.gorillawalker.com/sister-sarah-s-pick-3-hot-sums-to-win-now.pdf
    • http://www.gorillawalker.com/the-homeopathic-treatment-of-influenza-surviving-influenza-epidemics-and-pandemics.pdf
    • http://www.gorillawalker.com/the-end-of-the-world-as-we-know-it-faith.pdf
    • http://www.gorillawalker.com/olivia-helps-with-christmas-classic-board-books.pdf
    • http://www.gorillawalker.com/from-reductionism-to-creativity.pdf
    • http://www.gorillawalker.com/trees-their-natural-history.pdf
    • http://www.gorillawalker.com/da-yan-wild-goose-qigong-the-2nd-64-movements-volume.pdf
    • http://www.gorillawalker.com/our-secret-stretching-my-son-s-girlfriend-naughty-taboo-older.pdf
    • http://www.gorillawalker.com/2000-miles-on-wisdom.pdf
    • http://www.gorillawalker.com/disciples-of-the-hearts-of-jesus-and-mary-priests-for.pdf
    • http://www.gorillawalker.com/the-bible-authorized-version.pdf
    • http://www.gorillawalker.com/transforming-schools-creating-a-culture-of-continuous-improvement.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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