Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a74e2fdf6fb5f74…

MALICIOUS

PDF

44.5 KB Created: 2019-04-11 11:50:58 +03:00 Authoring application: - (via Acrobat Distiller 7.0 (Windows))
MD5: 1fa883af6651b3aa8a8df7c0ea7e0fdb SHA-1: 5ab74488253bd60858c6b3a99a8a5f8a0172f002 SHA-256: 5a74e2fdf6fb5f742885efe2a246e43d8006a7a1018fa7d3f077459ba82102f6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, indicating a link farm or redirection strategy. The ML classifier also flagged this PDF as malicious. The primary attack pattern observed is the distribution of numerous external links, likely intended to lead users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/reflecting-christ.pdf
    • http://www.gorillawalker.com/jarryd-s-journey-a-journey-of-innocence-novella.pdf
    • http://www.gorillawalker.com/chess-results-1975-1977-a-comprehensive-record-with-872-tournament.pdf
    • http://www.gorillawalker.com/pestis-18.pdf
    • http://www.gorillawalker.com/optics-demystified.pdf
    • http://www.gorillawalker.com/everquest-2-map-sword-sorcery.pdf
    • http://www.gorillawalker.com/hailstorm-solo-cornet-and-concert-band-conductor-score-eighth-note.pdf
    • http://www.gorillawalker.com/twenty-ads-that-shook-the-world-the-century-s-most.pdf
    • http://www.gorillawalker.com/the-original-jamaican-tie-a-leaf-duckoono-blue-drawers-recipe.pdf
    • http://www.gorillawalker.com/kaplan-ap-biology-2014-2015-kaplan-test-prep.pdf
    • http://www.gorillawalker.com/ovid-s-heroines-a-verse-translation-of-the-heroides.pdf
    • http://www.gorillawalker.com/the-bella-coola-valley-harlan-i-smith-s-fieldwork-photographs.pdf
    • http://www.gorillawalker.com/transformers-all-hail-megatron-vol-2.pdf
    • http://www.gorillawalker.com/journalism-a-very-short-introduction-very-short-introductions.pdf
    • http://www.gorillawalker.com/the-worldwide-guide-to-movie-locations-presents-london.pdf
    • http://www.gorillawalker.com/the-end-of-overeating-taking-control-of-the-insatiable-american.pdf
    • http://www.gorillawalker.com/the-mapuche-in-modern-chile-a-cultural-history-mapuche-in.pdf
    • http://www.gorillawalker.com/dashing-irish-texas-devlins-book-three.pdf
    • http://www.gorillawalker.com/democracy-after-democratization-the-korean-experience.pdf
    • http://www.gorillawalker.com/pretty-broken-punks-lipstick-leather-jeans-a-death-of-new.pdf
    • http://www.gorillawalker.com/great-aussie-barbie-cookbook.pdf
    • http://www.gorillawalker.com/double-saut-interracial-romance-and-erotica.pdf
    • http://www.gorillawalker.com/dante-longman-critical-readers.pdf
    • http://www.gorillawalker.com/pennsylvania-6th-grade-math-test-prep-common-core-learning-standards.pdf
    • http://www.gorillawalker.com/time-management-for-entrepreneurs-how-to-stop-procrastinating-get-more.pdf
    • http://www.gorillawalker.com/for-the-people-i-love-and-can-t-forget.pdf
    • http://www.gorillawalker.com/mahamudra-teachings-of-the-supreme-siddhas.pdf
    • http://www.gorillawalker.com/the-tylos-period-burials-in-bahrain-2-the-hamad-town.pdf
    • http://www.gorillawalker.com/faure-gabriel-berceuse-violin-or-viola-or-cello-and-piano.pdf
    • http://www.gorillawalker.com/principles-of-automated-negotiation.pdf
    • http://www.gorillawalker.com/children-have-got-to-be-carefully-taught.pdf
    • http://www.gorillawalker.com/tort-liability-and-insurance-scandinavian-studies-in-law.pdf
    • http://www.gorillawalker.com/nothing-this-evil-ever-dies-the-secret-letters-son-of.pdf
    • http://www.gorillawalker.com/basic-mathematics-for-occupational-and-vocational-students.pdf
    • http://www.gorillawalker.com/moments-of-truth-excerpts-from-the-rubaiyat-of-omar-khayyam.pdf
    • http://www.gorillawalker.com/smart-guide-ponds-fountains-waterfalls-landscaping.pdf
    • http://www.gorillawalker.com/how-to-start-a-home-based-landscaping-business-home-based.pdf
    • http://www.gorillawalker.com/2016-confesssions-of-the-world-s-best-father-wall-calendar.pdf
    • http://www.gorillawalker.com/homemade-gifts-in-a-jar-gift-box-better-homes-gardens.pdf
    • http://www.gorillawalker.com/oss-special-weapons-and-equipment-spy-devices-of-wwii.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/