Malicious PDF — malware analysis report

Static analysis result for SHA-256 894dabddb1193b5d…

MALICIOUS

PDF

43.2 KB Created: 2019-02-13 16:50:31 +03:00 Authoring application: QuarkXPressª: LaserWriter 8 8.5.1 (via Acrobat Distiller 3.01 for Power Macintosh)
MD5: 7c21fa91b60693381524b18fb6b3023d SHA-1: 3b16a3a74eeb4c52345a4e8f65abdba9069b7888 SHA-256: 894dabddb1193b5d7b8588438a926f4aebd5ad3433e4157bb3b1f0bb7b382dba
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was not parsable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

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/rodrigo-hwv-5-overture-full-score-a1542.pdf
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    • http://www.gorillawalker.com/santa-fe-trail-national-historic-trail.pdf
    • http://www.gorillawalker.com/current-trends-in-audiology-folia-phoniatrica-et-logo-paedica-series.pdf
    • http://www.gorillawalker.com/alix-and-nicky-the-passion-of-the-last-tsar-and.pdf
    • http://www.gorillawalker.com/goethe-and-his-age.pdf
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    • http://www.gorillawalker.com/frida-kahlo-getting-to-know-the-world-s-greatest-artists.pdf
    • http://www.gorillawalker.com/bollywood-und-die-briten-die-darstellung-der-ehemaligen-kolonialmacht-im.pdf
    • http://www.gorillawalker.com/billy-elliot.pdf
    • http://www.gorillawalker.com/second-book-of-go.pdf
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    • http://www.gorillawalker.com/stuffed-by-all-three-of-my-husband-s-bosses-3.pdf
    • http://www.gorillawalker.com/mrs-sigourney-s-letters-to-mothers-1839.pdf
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    • http://www.gorillawalker.com/queenie-peavy.pdf
    • http://www.gorillawalker.com/women-s-institute-homemade-soups.pdf
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    • http://www.gorillawalker.com/drunk-driving-defense-2008-cumulative-supplement-with-cdrom.pdf
    • http://www.gorillawalker.com/god-s-little-princess-bedtime-devotional.pdf
    • http://www.gorillawalker.com/catalogue-raisonne-de-toutes-les-estampes-qui-forment-l-oeuvre.pdf
    • http://www.gorillawalker.com/the-bible-and-lay-people-explorations-in-practical-pastoral-and.pdf
    • http://www.gorillawalker.com/army-doctrine-publication-adp-3-0-fm-3-0-unified.pdf
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    • http://www.gorillawalker.com/santa-fe-trail-national-
    • 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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