Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c7c40dd40d48e63…

MALICIOUS

PDF

46.8 KB Created: 2019-02-14 08:13:12 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.10)
MD5: aa39cca34dce64a9fcebf00e543f03d5 SHA-1: 161120dc4296395b917d7b03b6f1beb4219a8571 SHA-256: 3c7c40dd40d48e634fbaa5df490350703c886d7e9eabf945388f1160f8b58b14
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document. The embedded URLs are likely used to direct users to malicious content or for SEO manipulation. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8509

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/lovecraft-s-library-a-catalogue-third-revised-edition.pdf
    • http://www.gorillawalker.com/imperial-eyes-travel-writing-and-transculturation.pdf
    • http://www.gorillawalker.com/the-st-bartholomew-s-day-massacre-a-brief-history-with.pdf
    • http://www.gorillawalker.com/exploring-crime-analysis-second-edition.pdf
    • http://www.gorillawalker.com/bonded-by-blood-robert-pattinson-and-taylor-lautner.pdf
    • http://www.gorillawalker.com/now-hear-this-some-causes-of-hearing-loss-may-be.pdf
    • http://www.gorillawalker.com/dirty-jokes-n-adult-memes-uncensored-and-explicit-v11-funny.pdf
    • http://www.gorillawalker.com/locke-jefferson-and-the-justices-foundations-and-failures-of-the.pdf
    • http://www.gorillawalker.com/talks-your-dad-never-had-with-you.pdf
    • http://www.gorillawalker.com/course-ilt-call-center.pdf
    • http://www.gorillawalker.com/blackbelt-in-blackjack-playing-21-as-a-martial-art.pdf
    • http://www.gorillawalker.com/shep-s-army-bummers-blisters-and-boondoggles.pdf
    • http://www.gorillawalker.com/old-ironsides-cornerstones-of-freedom-second-series.pdf
    • http://www.gorillawalker.com/evernote-101-evernote-hacks-become-an-everyone-ninja-and-accomplish.pdf
    • http://www.gorillawalker.com/button-button-uncanny-stories.pdf
    • http://www.gorillawalker.com/eureka-math-study-guide-a-story-of-units-grade-1.pdf
    • http://www.gorillawalker.com/in-the-presence-of-grief-helping-family-members-resolve-death.pdf
    • http://www.gorillawalker.com/forgiveness-a-guide-for-prayer-take-and-receive-series.pdf
    • http://www.gorillawalker.com/mipham-s-beacon-of-certainty-illuminating-the-view-of-dzogchen.pdf
    • http://www.gorillawalker.com/sufi-stories.pdf
    • http://www.gorillawalker.com/theory-and-applications-of-satisfiability-testing-sat-2008-11th-international.pdf
    • http://www.gorillawalker.com/principles-of-cellular-and-molecular-immunology.pdf
    • http://www.gorillawalker.com/into-mongolia.pdf
    • http://www.gorillawalker.com/optical-binding-phenomena-observations-and-mechanisms-springer-theses.pdf
    • http://www.gorillawalker.com/eternal-warrior-volume-1-sword-of-the-wild.pdf
    • http://www.gorillawalker.com/too-big-for-the-brat-kindle-edition.pdf
    • http://www.gorillawalker.com/a-resource-bibliography-for-the-decipherment-of-maya-hieroglyph-and.pdf
    • http://www.gorillawalker.com/business-mathematics-brief-edition-9th-edition-by-cleaves-ph-d.pdf
    • http://www.gorillawalker.com/minapin-pakistan-alpenvereinskarte.pdf
    • http://www.gorillawalker.com/chemistry-in-the-community-activities-workbook.pdf
    • http://www.gorillawalker.com/fantastische-kunst-dutch-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/volcanoes-disasters-up-close.pdf
    • http://www.gorillawalker.com/un-mundo-sobre-papel-libros-y-grabados-flamencos-en-el.pdf
    • http://www.gorillawalker.com/general-relativity-1-newton-vs-einstein-everyone-s-guide-series.pdf
    • http://www.gorillawalker.com/governance-administration-and-development-making-the-state-work.pdf
    • http://www.gorillawalker.com/the-colloidal-domain-where-physics-chemistry-biology-and-technology-meet.pdf
    • http://www.gorillawalker.com/cul-de-sac.pdf
    • http://www.gorillawalker.com/strategies-for-trusts-and-estates-in-florida-2014-ed-leading.pdf
    • http://www.gorillawalker.com/how-to-read-shop-drawings-with-special-reference-to-welding.pdf
    • http://www.gorillawalker.com/miller-levine-biology-adapted-reading-and-study-workbook-b-2008c.pdf
    • http://www.gorillawalker.com/dirty-jokes-n-adult-mem
    • 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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