Malicious PDF — malware analysis report

Static analysis result for SHA-256 631a14243a90294f…

MALICIOUS

PDF

44.8 KB Created: 2019-04-03 18:27:36 +03:00 Authoring application: -
MD5: 5b75c33cfbc2509d32f1121629796fb1 SHA-1: 0f03e8f298232c58b220c89d90a9fe9f99421e52 SHA-256: 631a14243a90294f2efec879a79179a5fdbf1cba56001f78df9311b59955caec
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, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. The primary attack pattern observed is the mass linking to external resources, likely intended to drive traffic or distribute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/clinician-s-guide-treatment-of-patients-with-hiv-other-communicable.pdf
    • http://www.gorillawalker.com/the-constable-has-blundered-the-exclusionary-rule-crime-and-corruption.pdf
    • http://www.gorillawalker.com/venezuela-a-handbook.pdf
    • http://www.gorillawalker.com/marine-algae-extracts-processes-products-and-applications-2-volume-set.pdf
    • http://www.gorillawalker.com/snowfire.pdf
    • http://www.gorillawalker.com/teaching-concert-band-in-today-s-schools-for-today-s.pdf
    • http://www.gorillawalker.com/instant-stretches-for-stress-relief-instant-energy-and-relaxation-with.pdf
    • http://www.gorillawalker.com/taming-the-forces-between-quarks-and-gluons-calorons-out-of.pdf
    • http://www.gorillawalker.com/the-story-of-modern-preventive-medicine-routledge-revivals-being-a.pdf
    • http://www.gorillawalker.com/the-trial-and-death-of-socrates-euthyphro-apology-crito-and.pdf
    • http://www.gorillawalker.com/mujeres-olvidadas-historia-divulgativa-spanish-edition.pdf
    • http://www.gorillawalker.com/speech-acts-and-politeness-across-languages-and-cultures-linguistic-insights.pdf
    • http://www.gorillawalker.com/the-complete-book-of-shelby-automobiles-cobras-mustangs-and-super.pdf
    • http://www.gorillawalker.com/tattoo-lettering-bible.pdf
    • http://www.gorillawalker.com/a-student-guide-to-play-analysis.pdf
    • http://www.gorillawalker.com/christmas-folio-v-4-for-saxophone-quartet-arranged-by-william.pdf
    • http://www.gorillawalker.com/the-entertainment-marketing-revolution-bringing-the-moguls-the-media-and.pdf
    • http://www.gorillawalker.com/the-computer-incident-response-planning-handbook-executable-plans-for-protecting.pdf
    • http://www.gorillawalker.com/biblical-words-and-their-meaning.pdf
    • http://www.gorillawalker.com/south-africa-s-brave-new-world-the-beloved-country-since.pdf
    • http://www.gorillawalker.com/natural-gas-a-primer-for-the-21st-century.pdf
    • http://www.gorillawalker.com/blades-bullets-saga-assassin-moon.pdf
    • http://www.gorillawalker.com/celtic-and-old-norse-designs-dover-pictorial-archive.pdf
    • http://www.gorillawalker.com/hypnotherapy-scripts-vol-ii.pdf
    • http://www.gorillawalker.com/tractates-tvul-yom-yadayim-uktzin-seder-tohoros-yad-avraham-mishnah.pdf
    • http://www.gorillawalker.com/human-heredity-principles-and-issues.pdf
    • http://www.gorillawalker.com/literary-britain-paperback.pdf
    • http://www.gorillawalker.com/figure-it-out-human-proportions-draw-the-head-and-figure.pdf
    • http://www.gorillawalker.com/escaping-into-the-night.pdf
    • http://www.gorillawalker.com/northern-constellations-new-readings-in-nordic-cinema-series-a-scandinavian.pdf
    • http://www.gorillawalker.com/restaurant-adventures-think-or-sink-do-you-have-what-it.pdf
    • http://www.gorillawalker.com/vought-f4u-corsair-warbird-tech-vol-4.pdf
    • http://www.gorillawalker.com/zodiac-station-a-novel.pdf
    • http://www.gorillawalker.com/oliver-the-overachiever.pdf
    • http://www.gorillawalker.com/sicilian-defense.pdf
    • http://www.gorillawalker.com/critical-thinking-a-student-s-introduction-with-powerweb-critical-thinking.pdf
    • http://www.gorillawalker.com/it-s-your-time-activate-your-faith-achieve-your-dreams.pdf
    • http://www.gorillawalker.com/trumpet-tune-and-air-score-parts-eighth-note-publications.pdf
    • http://www.gorillawalker.com/adobe-acrobat-and-pdf-for-architecture-engineering-and-construction.pdf
    • http://www.gorillawalker.com/5-years-without-food-the-food-allergy-survival-guide-how.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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