Malicious PDF — malware analysis report

Static analysis result for SHA-256 98b086316aef426d…

MALICIOUS

PDF

45.1 KB Created: 2018-12-15 20:00:56 +03:00 Authoring application: Adobe Acrobat 8.0 Combine Files (via Adobe Acrobat 8.0)
MD5: 5db315fe7e63c29847ea6d523f441571 SHA-1: b892d6a50c79cbb4cc654ac7980961c99e66d9ab SHA-256: 98b086316aef426def9c74400d4d7a2825ffdc5c6b9af0bfbe5dc69015d40462
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a large number of embedded URLs pointing to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or to redirect users to potentially malicious content hosted on these sites. The ML classifier also flagged the document as malicious. No scripts were extracted from this sample.

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/comprehensive-perioperative-nursing-volume-2-practice-medieval-renaissance-texts-studies.pdf
    • http://www.gorillawalker.com/growing-in-christ-deepen-your-relationship-with-jesus-victory-series.pdf
    • http://www.gorillawalker.com/jesus-my-very-best-friend-a-book-about-friendship-little.pdf
    • http://www.gorillawalker.com/la-construccion-del-personaje-building-a-character-el-libro-de.pdf
    • http://www.gorillawalker.com/build-your-own-metal-working-shop-from-scrap-complete-7.pdf
    • http://www.gorillawalker.com/the-celia-collection.pdf
    • http://www.gorillawalker.com/la-intendencia-del-paraguay-en-el-virreinato-del-rio-de.pdf
    • http://www.gorillawalker.com/unseemly-education-of-anne-merchant-v-trilogy.pdf
    • http://www.gorillawalker.com/famous-cathedrals-of-spain-the-most-interesting-religious-buildings-in.pdf
    • http://www.gorillawalker.com/handbook-of-sports-medicine-and-science-road-cycling.pdf
    • http://www.gorillawalker.com/the-great-flood-of-1993-causes-impacts-and-responses.pdf
    • http://www.gorillawalker.com/the-red-snake-hino-horror.pdf
    • http://www.gorillawalker.com/basic-painting-color-full-training-the-combination-of-still-life.pdf
    • http://www.gorillawalker.com/cal-95-psychotronic-movie.pdf
    • http://www.gorillawalker.com/simply-delicious-raw-recipes-80-10-10-soups-volume-2.pdf
    • http://www.gorillawalker.com/cities-in-the-pacific-rim.pdf
    • http://www.gorillawalker.com/what-s-so-great-about-the-doctrines-of-grace.pdf
    • http://www.gorillawalker.com/the-traffic-stoppers-case.pdf
    • http://www.gorillawalker.com/drum-your-way-from-beginning-joe-to-drumming-pro-volume.pdf
    • http://www.gorillawalker.com/mosby-s-respiratory-care-equipment-pageburst-e-book-on-vitalsource.pdf
    • http://www.gorillawalker.com/math-in-focus-singapore-math-manipulatives-kit-grade-2.pdf
    • http://www.gorillawalker.com/what-i-keep-photographs-of-the-new-face-of-homelessness.pdf
    • http://www.gorillawalker.com/light-brigade.pdf
    • http://www.gorillawalker.com/super-active-film-making.pdf
    • http://www.gorillawalker.com/lives-of-boulton-and-watt-principally-from-the-original-soho.pdf
    • http://www.gorillawalker.com/a-voyage-to-china-including-a-visit-to-the-bombay.pdf
    • http://www.gorillawalker.com/egil-s-saga-penguin-classics.pdf
    • http://www.gorillawalker.com/2008-in-horse-racing-2008-world-thoroughbred-racehorse-rankings-2008.pdf
    • http://www.gorillawalker.com/vintage-international-harvester-tractors.pdf
    • http://www.gorillawalker.com/heal-your-inner-child-self-hypnosis-and-meditation-unabridged-audible.pdf
    • http://www.gorillawalker.com/double-squeezes-kelsey-on-squeeze-play.pdf
    • http://www.gorillawalker.com/beyond-the-yellow-star-to-america.pdf
    • http://www.gorillawalker.com/what-can-we-do-practical-ways-your-youth-ministry-can.pdf
    • http://www.gorillawalker.com/mastering-mountain-bike-skills.pdf
    • http://www.gorillawalker.com/hanuman-and-ganesha.pdf
    • http://www.gorillawalker.com/children-s-russian-book-my-daddy-is-the-best-bilingual.pdf
    • http://www.gorillawalker.com/sonatina-for-clarinet-solo-opus-27.pdf
    • http://www.gorillawalker.com/cooking-light-dinnertime-survival-guide-feed-your-family-save-your.pdf
    • http://www.gorillawalker.com/earth-an-introduction-to-physical-geology-gly-1000-exploring-geological.pdf
    • http://www.gorillawalker.com/china-a-history-to-1949-enchantment-of-the-world.pdf
    • http://www.gorillawalker.com/la-intendencia-
    • 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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