Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8fd730fa23a840d…

MALICIOUS

PDF

44.3 KB Created: 2018-12-02 20:17:55 +03:00 Authoring application: Writer (via OpenOffice.org 2.4)
MD5: e8526c29c461aa8e51d184512a9461de SHA-1: a9dbcdcd6760523fbf953187cc65178a333100a8 SHA-256: c8fd730fa23a840d9c91544f3be317ba872047602b3abf9ecb5f362129639b00
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/appleton-langes-review-for-the-ultrasonography-examination-3rd-edition.pdf
    • http://www.gorillawalker.com/i-hunt-killers.pdf
    • http://www.gorillawalker.com/the-vampire-kitty-cat-chronicles.pdf
    • http://www.gorillawalker.com/how-to-get-into-the-entertainment-business-behind-the-scenes.pdf
    • http://www.gorillawalker.com/jigsaw-jones-boxed-set-books-25-32-includes-secret-decoder.pdf
    • http://www.gorillawalker.com/maternal-child-nursing-text-and-simulation-learning-system-package-4e.pdf
    • http://www.gorillawalker.com/picosecond-phenomena-3-proceedings-springer-series-in-chemical-physics.pdf
    • http://www.gorillawalker.com/washington-s-rail-trails-walking-running-bicycling-in-line-skating.pdf
    • http://www.gorillawalker.com/afghanistan-the-bear-trap.pdf
    • http://www.gorillawalker.com/business-improvement-districts-erfolgreicher-politikimport-aus-den-usa.pdf
    • http://www.gorillawalker.com/dark-eyes-first-edition.pdf
    • http://www.gorillawalker.com/medicina-energetica-acupuntura-2-circuitos-energ-ticos-principales-spanish-edition.pdf
    • http://www.gorillawalker.com/carlson-s-a-student-s-guide-to-elements-of-proof.pdf
    • http://www.gorillawalker.com/ib-world-schools-yearbook-2015.pdf
    • http://www.gorillawalker.com/packaging-of-electronic-systems-a-mechanical-engineering-approach-mcgraw-hill.pdf
    • http://www.gorillawalker.com/eternity-s-secret-what-the-bible-and-science-have-to.pdf
    • http://www.gorillawalker.com/barbe-bleue-paraphrase-tuba-part-qty-4-a7898.pdf
    • http://www.gorillawalker.com/pmp-exam-success-series-certification-study-system.pdf
    • http://www.gorillawalker.com/beatrice-a-victorian-classic.pdf
    • http://www.gorillawalker.com/close-calls-memoirs-of-a-survivor.pdf
    • http://www.gorillawalker.com/robert-l-johnson-life-skills-biographies.pdf
    • http://www.gorillawalker.com/the-clever-coyote.pdf
    • http://www.gorillawalker.com/rigby-on-our-way-to-english-texas-24-student-package.pdf
    • http://www.gorillawalker.com/the-seventh-angel.pdf
    • http://www.gorillawalker.com/florida-lighthouse-trail.pdf
    • http://www.gorillawalker.com/the-elephant-s-footprint.pdf
    • http://www.gorillawalker.com/antarctica-study-guide-kindle-edition.pdf
    • http://www.gorillawalker.com/the-supertrucks-of-scammell.pdf
    • http://www.gorillawalker.com/building-our-future-a-people-s-architectural-history-of-saskatchewan.pdf
    • http://www.gorillawalker.com/child-adolescent-clinical-psychopharmacology-3rd-01-by-green-wayne-hugo.pdf
    • http://www.gorillawalker.com/bonhoeffer-s-legacy-the-christian-way-in-a-world-without.pdf
    • http://www.gorillawalker.com/business-immigration-law-strategies-for-employing-foreign-nationals-employment-law.pdf
    • http://www.gorillawalker.com/short-story-criticism-annual-cumulative-title-index-covers-volumes-1.pdf
    • http://www.gorillawalker.com/wheels-of-steel-special-edition-book-1-2-and-3.pdf
    • http://www.gorillawalker.com/kombucha-drink-this-wonderful-probiotic-tea-for-immune-support-digestive.pdf
    • http://www.gorillawalker.com/biological-inorganic-chemistry-second-edition-a-new-introduction-to-molecular.pdf
    • http://www.gorillawalker.com/the-digital-youth-network-cultivating-digital-media-citizenship-in-urban.pdf
    • http://www.gorillawalker.com/down-on-the-batture.pdf
    • http://www.gorillawalker.com/transfer-pricing-in-action.pdf
    • http://www.gorillawalker.com/lincoln-y-santo-domingo-1861-1865-spanish-edition.pdf
    • http://www.gorillawalker.com/busin
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.