Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a5f1bc5436bb5c…

MALICIOUS

PDF

43.0 KB Created: 2018-11-14 08:16:45 +03:00 Authoring application: FrameMaker 10.0.2 (via Acrobat Distiller 10.1.15 (Windows))
MD5: 257ae8cc770dedabd76c4cc3b38f2c71 SHA-1: af8a80027969d73f69a308e691b289f0be647f74 SHA-256: 60a5f1bc5436bb5cd782a6619c1c75e65a08dc477612f2cce062330bf390d631
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or improve search engine rankings for malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8242

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/questioning-nineteenth-century-assumptions-about-knowledge-reductionism-fernand-braudel-center.pdf
    • http://www.gorillawalker.com/donde-se-ensenara-a-ser-feliz-libros-del-tiempo-the.pdf
    • http://www.gorillawalker.com/the-search-for-lost-fathering-rebuilding-your-father-relationship.pdf
    • http://www.gorillawalker.com/tales-of-the-shadowmen-6-grand-guignol.pdf
    • http://www.gorillawalker.com/economics-of-agglomeration-cities-industrial-location-and-globalization.pdf
    • http://www.gorillawalker.com/christ-the-truth-an-essay-towards-the-organization-of-christian.pdf
    • http://www.gorillawalker.com/hong-kong-here-be-dragons.pdf
    • http://www.gorillawalker.com/tickety-toc-count-our-friends-a-counting-board-book.pdf
    • http://www.gorillawalker.com/instinctive-behavior-the-development-of-modern-concept.pdf
    • http://www.gorillawalker.com/ordinary-guy.pdf
    • http://www.gorillawalker.com/lust-unearthed-vintage-gay-graphics-from-the-dubek-collection.pdf
    • http://www.gorillawalker.com/james-ensor-catalogue-expo-brussels.pdf
    • http://www.gorillawalker.com/hamilton-s-son.pdf
    • http://www.gorillawalker.com/ingenier.pdf
    • http://www.gorillawalker.com/early-churches-of-constantinople-architecture-and-liturgy.pdf
    • http://www.gorillawalker.com/park-s-the-pediatric-cardiology-handbook-mobile-medicine-series-5e.pdf
    • http://www.gorillawalker.com/best-easy-day-hikes-glacier-and-waterton-lakes-best-easy.pdf
    • http://www.gorillawalker.com/la-leche-league-at-the-crossroads-of-medicine-feminism-and.pdf
    • http://www.gorillawalker.com/sonetti-romaneschi-parte-xiv-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-exchange-leader-s-guide.pdf
    • http://www.gorillawalker.com/el-futbol-soccer-mini-spanish-edition.pdf
    • http://www.gorillawalker.com/thoughts-on-religion-routledge-revivals.pdf
    • http://www.gorillawalker.com/pavlova-repertoire-of-a-legend.pdf
    • http://www.gorillawalker.com/cmlr-anti-trust-reports-2006-v-5.pdf
    • http://www.gorillawalker.com/general-and-vascular-ultrasound-case-review-series-2e.pdf
    • http://www.gorillawalker.com/introducing-muhammad.pdf
    • http://www.gorillawalker.com/word-problems-grade-3-mathematics.pdf
    • http://www.gorillawalker.com/reed-s-nautical-almanac-north-american-east-coast-2005.pdf
    • http://www.gorillawalker.com/enrichment-math-reading-grade-4-mcgraw-hill-learning-materials-spectrum.pdf
    • http://www.gorillawalker.com/mac-s-field-guide-to-yellowstone-grand-teton-national-parks.pdf
    • http://www.gorillawalker.com/three-zen-masters-ikkyu-hakuin-and-ryokan-kodansha-biographies.pdf
    • http://www.gorillawalker.com/the-ukulele-songbook-shanties-songs-of-the-sea.pdf
    • http://www.gorillawalker.com/ecstasy-its-history-and-lor.pdf
    • http://www.gorillawalker.com/scroll-of-revelation-invitation-to-armageddon.pdf
    • http://www.gorillawalker.com/alfred-just-for-fun-patriotic-songs-for-banjo-easy-tab.pdf
    • http://www.gorillawalker.com/what-makes-a-good-primary-school-teacher-expert-classroom-strategies.pdf
    • http://www.gorillawalker.com/a-band-of-brothers-the-lost-regiment-7.pdf
    • http://www.gorillawalker.com/curriculum-windows-what-curriculum-theorists-of-the-1960s-can-teach.pdf
    • http://www.gorillawalker.com/strange-attractors-poems-of-love-and-mathematics.pdf
    • http://www.gorillawalker.com/american-movie-audiences-from-the-turn-of-the-century-to.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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