Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5cc0a205e1b378…

MALICIOUS

PDF

45.4 KB Created: 2018-11-26 20:07:15 +03:00 Authoring application: Writer (via OpenOffice.org 3.2)
MD5: ce649c920ff6729e77aa4e10446fabf1 SHA-1: bb866b3ff835e5bab5858e914b8ad4a00b322353 SHA-256: 6e5cc0a205e1b3787a7067a79dafaac8900109bd03492eec848622b1d3e514fc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents on the 'gorillawalker.com' domain. The ML classifier also flagged this PDF as malicious. The primary attack pattern appears to be the distribution of a link farm, potentially for SEO manipulation or to serve as a distribution point for other malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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/closing-the-rights-gap-from-human-rights-to-social-transformation.pdf
    • http://www.gorillawalker.com/the-bankers-kindle-edition.pdf
    • http://www.gorillawalker.com/mel-bay-complete-tenor-banjo-method.pdf
    • http://www.gorillawalker.com/operation-kronstadt.pdf
    • http://www.gorillawalker.com/global-climate-change-and-cold-regions-ecosystems-advances-in-soil.pdf
    • http://www.gorillawalker.com/baby-bites.pdf
    • http://www.gorillawalker.com/glaciers-ocean-atmosphere-interactions-series-of-proceedings-reports.pdf
    • http://www.gorillawalker.com/saturn-true-books-space.pdf
    • http://www.gorillawalker.com/sports-law-kindle-edition.pdf
    • http://www.gorillawalker.com/baedeker-ceska-republika-road-map-of-the-czech-republic.pdf
    • http://www.gorillawalker.com/aquaponics-for-beginners-the-ultimate-crash-course-guide-to-learning.pdf
    • http://www.gorillawalker.com/the-abc-of-allergy-cooking.pdf
    • http://www.gorillawalker.com/domestic-goddesses.pdf
    • http://www.gorillawalker.com/managing-diversity-in-public-sector-workforces-essentials-of-public-policy.pdf
    • http://www.gorillawalker.com/die-gedichte-von-sommer-und-tod-german-language-interesting-ebooks.pdf
    • http://www.gorillawalker.com/the-modern-baker-time-saving-techniques-for-breads-tarts-pies.pdf
    • http://www.gorillawalker.com/when-memory-dies.pdf
    • http://www.gorillawalker.com/the-rexx-cookbook-a-tutorial-guide-to-the-rexx-language.pdf
    • http://www.gorillawalker.com/immunities-in-the-age-of-global-constitutionalism.pdf
    • http://www.gorillawalker.com/contribucion-al-conocimiento-de-la-cartografia-colonial.pdf
    • http://www.gorillawalker.com/warheart-sword-of-truth-series.pdf
    • http://www.gorillawalker.com/andrew-lloyd-webber-s-the-phantom-of-the-opera-companion.pdf
    • http://www.gorillawalker.com/an-air-of-distinction-a-chronicle-of-the-brookline-chamber.pdf
    • http://www.gorillawalker.com/complete-keyboard-player-songbook-3.pdf
    • http://www.gorillawalker.com/only-in-cologne-guide-to-hidden-corners-little-known-places.pdf
    • http://www.gorillawalker.com/shenandoah-satb-choral-sheet-music.pdf
    • http://www.gorillawalker.com/color-atlas-of-microneurosurgery-v-1-3-microanatomy-approaches-and.pdf
    • http://www.gorillawalker.com/ethical-challenges-to-business-as-usual.pdf
    • http://www.gorillawalker.com/the-edible-south-the-power-of-food-and-the-making.pdf
    • http://www.gorillawalker.com/cat-mysteries-great-cat-mysteries.pdf
    • http://www.gorillawalker.com/uae-off-road-uae-off-5-activity-guide.pdf
    • http://www.gorillawalker.com/road-traffic-act-1988-elizabeth-ii-chapter-52.pdf
    • http://www.gorillawalker.com/que-animal-es.pdf
    • http://www.gorillawalker.com/electron-paramagnetic-resonance-elementary-theory-and-practical-applications.pdf
    • http://www.gorillawalker.com/extra-large-print-word-search-volume-2-large-print-paperback.pdf
    • http://www.gorillawalker.com/prodigal-wisdom-lessons-learned-from-my-son-s-addiction.pdf
    • http://www.gorillawalker.com/mastering-automotive-digital-marketing-a-training-guide-for-dealer-principals.pdf
    • http://www.gorillawalker.com/a-kids-guide-to-american-history-volume-2-trail-of.pdf
    • http://www.gorillawalker.com/encounters-with-the-soul-active-imagination-as-developed-by-c.pdf
    • http://www.gorillawalker.com/women-in-the-civil-war-uhc-untold-history-of-the.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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