Malicious PDF — malware analysis report

Static analysis result for SHA-256 996b3c5a1bf575a2…

MALICIOUS

PDF

45.8 KB Created: 2018-11-30 20:16:13 +03:00 Authoring application: dvips 5.83 (MiKTeX 1.20b) Copyright 1998 Radical Eye Software (via Acrobat Distiller 4.0 for Windows)
MD5: 04745f490478b0eb29bf0968912910d4 SHA-1: aba91ff1bc7f9d52770ea39e23e1e6ab03ad1958 SHA-256: 996b3c5a1bf575a272b510e971a1b8b71a3de1f5c1c041e572eaf529afb4bee7
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, all hosted on the same domain (www.gorillawalker.com). This is indicative of a link farm or SEO spamming technique, likely intended to drive traffic or potentially host malicious content disguised as legitimate documents. No scripts were extracted, and the document body was heavily obfuscated, making a precise determination of the ultimate payload difficult.

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/toro-bravo-stories-recipes-no-bull.pdf
    • http://www.gorillawalker.com/bioinorganic-chemistry-a-survey.pdf
    • http://www.gorillawalker.com/dante-s-mates-beyond-the-angel-pack-1-siren-publishing.pdf
    • http://www.gorillawalker.com/fodor-s-costa-rica-2006-fodor-s-gold-guides.pdf
    • http://www.gorillawalker.com/return-to-titanic.pdf
    • http://www.gorillawalker.com/bookkeeping-for-dummies-for-dummies-series.pdf
    • http://www.gorillawalker.com/the-conquest-the-story-of-a-negro-pioneer.pdf
    • http://www.gorillawalker.com/tullio-lombardo-and-venetian-high-renaissance-sculpture-national-gallery-of.pdf
    • http://www.gorillawalker.com/galactic-suburbia-recovering-women-s-science-fiction.pdf
    • http://www.gorillawalker.com/lifting-our-gaze-the-community-appraisal-and-strengthening-framework.pdf
    • http://www.gorillawalker.com/gay-tijuana-male-escort-straight-first-time-gay-erotica-interracial.pdf
    • http://www.gorillawalker.com/kaplan-ged-complete-self-study-guide-for-the-ged-tests.pdf
    • http://www.gorillawalker.com/nordic-heroes-in-the-market-and-a-wholesale-arrangement.pdf
    • http://www.gorillawalker.com/accounting-available-titles-cengagenow.pdf
    • http://www.gorillawalker.com/british-secret-projects-4-hypersonics-ramjets-and-missiles.pdf
    • http://www.gorillawalker.com/frieden-durch-kommunikation-das-system-genscher-und-die-entspannungspolitik-im.pdf
    • http://www.gorillawalker.com/all-the-leader-you-can-be-the-science-of-achieving.pdf
    • http://www.gorillawalker.com/the-value-of-the-particular-lessons-from-judaism-and-the.pdf
    • http://www.gorillawalker.com/the-foundation-engineering-handbook-second-edition.pdf
    • http://www.gorillawalker.com/the-only-ip-book-you-will-ever-need-unraveling-the.pdf
    • http://www.gorillawalker.com/exploding-the-myth-about-craps.pdf
    • http://www.gorillawalker.com/level-2-health-social-care-diploma-hsc-028-assessment-workbook.pdf
    • http://www.gorillawalker.com/excalibur-reclaims-her-king.pdf
    • http://www.gorillawalker.com/drug-addiction-and-related-clinical-problems.pdf
    • http://www.gorillawalker.com/curious-creatures-a-mix-and-match-book.pdf
    • http://www.gorillawalker.com/basic-algebra-ii-bk-2.pdf
    • http://www.gorillawalker.com/el-programa-de-eficacia-personal-c-mo-conseguir-organizar-su.pdf
    • http://www.gorillawalker.com/norman-the-slug-who-saved-christmas.pdf
    • http://www.gorillawalker.com/dave-tuna-s-2015-guide-to-diving-st-kitts-kindle.pdf
    • http://www.gorillawalker.com/teaching-language-from-grammar-to-grammaring.pdf
    • http://www.gorillawalker.com/the-terror-of-natural-right-republicanism-the-cult-of-nature.pdf
    • http://www.gorillawalker.com/the-literary-importer-of-le-havre-maison-jobin-imports-coffee.pdf
    • http://www.gorillawalker.com/darwin-s-armada-four-voyages-and-the-battle-for-the.pdf
    • http://www.gorillawalker.com/pun-glish-a-dictionary-of-midwestern-puns.pdf
    • http://www.gorillawalker.com/precalculus.pdf
    • http://www.gorillawalker.com/elements-of-plane-and-spherical-trigonometry.pdf
    • http://www.gorillawalker.com/the-master-s-degree-in-education-as-teacher-professional-development.pdf
    • http://www.gorillawalker.com/my-exchange-student.pdf
    • http://www.gorillawalker.com/20-20-diet-recipes-delicious-fat-shredding-20-20-diet.pdf
    • http://www.gorillawalker.com/annie-sloan-s-decorative-wood-finishes-a-step-by-step.pdf
    • http://www.gorillawalker.com/tullio-lombardo-and-venetian-high-renaissa
    • 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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