Malicious PDF — malware analysis report

Static analysis result for SHA-256 e15c2f5386f4bc3e…

MALICIOUS

PDF

40.9 KB Created: 2018-11-14 11:31:48 +03:00 Authoring application: dvips(k) 5.993 Copyright 2013 Radical Eye Software (via GPL Ghostscript 9.07)
MD5: 99438b2470d3e28f8c0f2202a169d997 SHA-1: b39d128e1eda1e9dbfe0594269adb0bc6cfde58e SHA-256: e15c2f5386f4bc3e44ee7eb4e379c5ca58bd8e63ce16de772c6da2baa927887f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files. The heuristic 'PDF_SEO_LINK_FARM' indicates that the document is designed to link to 32 external PDFs, with many having long titles suggestive of SEO manipulation. The primary attack pattern involves directing users to these external resources, which could be used for SEO spam or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/international-tables-for-crystallography-volume-e-subperiodic-groups.pdf
    • http://www.gorillawalker.com/knitted-finger-puppets-34-easy-to-make-toys.pdf
    • http://www.gorillawalker.com/life-of-a-tree-raintree-perspectives.pdf
    • http://www.gorillawalker.com/god-s-servants-the-prophets-all-the-bible.pdf
    • http://www.gorillawalker.com/chemistry-4th-edition.pdf
    • http://www.gorillawalker.com/agreement-between-the-government-of-great-britain-the-united-kingdom.pdf
    • http://www.gorillawalker.com/high-magnetic-fields-applications-in-condensed-matter-physics-and-spectroscopy.pdf
    • http://www.gorillawalker.com/hymn-stories-for-children.pdf
    • http://www.gorillawalker.com/personal-recollections-of-hawaii.pdf
    • http://www.gorillawalker.com/olduvai-gorge-my-search-for-early-man.pdf
    • http://www.gorillawalker.com/capitalist-family-values-gender-work-and-corporate-culture-at-boeing.pdf
    • http://www.gorillawalker.com/the-daddy-s-girl-collection-the-daddy-s-girl-series.pdf
    • http://www.gorillawalker.com/heal-your-gut-supercharged-food.pdf
    • http://www.gorillawalker.com/the-prince-of-the-house-of-david.pdf
    • http://www.gorillawalker.com/soup-comfort-food.pdf
    • http://www.gorillawalker.com/the-architecture-of-prince-albert-karoo-town-at-the-foot.pdf
    • http://www.gorillawalker.com/pediatric-emergency-medicine-board-review.pdf
    • http://www.gorillawalker.com/berry-and-co.pdf
    • http://www.gorillawalker.com/30-men-sing-mennonite-hour.pdf
    • http://www.gorillawalker.com/work-happy-now-expand-your-superpowers-live-your-passions-and.pdf
    • http://www.gorillawalker.com/sediment-water-interactions-proceedings-of-the-fourth-international-symposium.pdf
    • http://www.gorillawalker.com/colitis-me-a-story-of-recovery.pdf
    • http://www.gorillawalker.com/soccer-games-fun-activities-for-ages-4-12-kindle-edition.pdf
    • http://www.gorillawalker.com/artifacts-and-allegiances-how-museums-put-the-nation-and-the.pdf
    • http://www.gorillawalker.com/blessed-is-she-lessons-in-living-from-women-of-the.pdf
    • http://www.gorillawalker.com/from-the-heart-on-being-the-mother-of-a-child.pdf
    • http://www.gorillawalker.com/100-architect-puzzles-tents-and-trees.pdf
    • http://www.gorillawalker.com/seduced-by-dawn-ii-menage-lesbian-erotic-romance.pdf
    • http://www.gorillawalker.com/49-easy-to-build-plywood-projects.pdf
    • http://www.gorillawalker.com/oh-yeah-proof-it-grade-4.pdf
    • http://www.gorillawalker.com/slave-at-sea-the-initiation-2-book-4.pdf
    • http://www.gorillawalker.com/jesus-christ-for-youth-leader-s-guide.pdf
    • http://www.gorillawalker.com/bottles-webster-s-specialty-crossword-puzzles.pdf
    • http://www.gorillawalker.com/anuario-pastoral-libro-de-recursos-e-ideas-spanish-edition.pdf
    • http://www.gorillawalker.com/the-stones-cry-out-a-cambodian-childhood-1975-1980.pdf
    • http://www.gorillawalker.com/the-ghosts-of-sleath.pdf
    • http://www.gorillawalker.com/the-yankee-whaler-dover-maritime.pdf
    • http://www.gorillawalker.com/small-time-operator-how-to-start-your-own-business-keep.pdf
    • http://www.gorillawalker.com/vida-en-el-aire-spanish-edition.pdf
    • http://www.gorillawalker.com/stress-strain-and-structural-dynamics-an-interactive-handbook-of-formulas.pdf
    • http://www.gorillawalker.com/hymn-st
    • 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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