Malicious PDF — malware analysis report

Static analysis result for SHA-256 1abba38df38252da…

MALICIOUS

PDF

44.5 KB Created: 2019-04-10 12:10:08 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 10.1.4 (Windows))
MD5: 98240f79e18f5285456b81a8cc038059 SHA-1: 16db7222b3a484b3084c0521fb3ee5cb32a2ebb0 SHA-256: 1abba38df38252da331caa0f1aa0db680057c3383c37d1740ad3f513815d7ca2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links 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, and the document body was heavily obfuscated, making it difficult to determine a more specific attack pattern beyond the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/learning-about-the-holocaust-literature-and-other-resources-for-young.pdf
    • http://www.gorillawalker.com/three-dimensional-dynamic-analysis-of-structures-with-emphasis-on-earthquake.pdf
    • http://www.gorillawalker.com/original-patent-application-number-8-401-for-improvements-in-stands.pdf
    • http://www.gorillawalker.com/pitch-your-tent-a-family-s-guide-to-tent-camping.pdf
    • http://www.gorillawalker.com/franko-s-dive-map-of-san-diego-county-coast.pdf
    • http://www.gorillawalker.com/mellone-s-photo-encyclopedia-of-u-s-s-akron-u.pdf
    • http://www.gorillawalker.com/rosemary-s-baby-cd.pdf
    • http://www.gorillawalker.com/p3-business-analysis-complete-text-paper-p3.pdf
    • http://www.gorillawalker.com/united-nations-peacekeeping-operations-ad-hoc-missions-permanent-engagement.pdf
    • http://www.gorillawalker.com/slow-cooker-cookbook-box-set-slow-cooker-recipes-breakfast-soup.pdf
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    • http://www.gorillawalker.com/the-facts-on-file-dictionary-of-clich-s-the-facts.pdf
    • http://www.gorillawalker.com/bridge-builders-how-superb-communicators-get-what-they-want-in.pdf
    • http://www.gorillawalker.com/their-alpha-bitch.pdf
    • http://www.gorillawalker.com/domestic-violence-and-international-law.pdf
    • http://www.gorillawalker.com/windows-7-quickstudy-computer.pdf
    • http://www.gorillawalker.com/christ-the-lord-is-risen-todaylet-us-with-a-gladsome.pdf
    • http://www.gorillawalker.com/tapping-the-power-within-a-path-to-self-empowerment-for.pdf
    • http://www.gorillawalker.com/the-kreutzer-sonata-and-other-stories-oxford-world-s-classics.pdf
    • http://www.gorillawalker.com/man-for-all-seasons-modern-classics.pdf
    • http://www.gorillawalker.com/catacomb-asylum.pdf
    • http://www.gorillawalker.com/frankenstein-takes-the-cake.pdf
    • http://www.gorillawalker.com/prep-pak-for-flmi-371-managing-for-solvency-and-profitability.pdf
    • http://www.gorillawalker.com/a-question-and-answer-guide-to-astronomy.pdf
    • http://www.gorillawalker.com/atlas-of-shiatsu-the-meridians-of-zen-shiatsu-1e.pdf
    • http://www.gorillawalker.com/potatoes-mashed-more.pdf
    • http://www.gorillawalker.com/the-prayer-sheet-music-piano-vocal-guitar.pdf
    • http://www.gorillawalker.com/history-pockets-ancient-egypt-grades-4-6.pdf
    • http://www.gorillawalker.com/new-perspectives-on-safavid-iran-empire-and-society-iranian-studies.pdf
    • http://www.gorillawalker.com/a-history-of-ancient-egypt-egyptian-civilization-in-context.pdf
    • http://www.gorillawalker.com/how-to-eat-less-easy-to-follow-tips-for-eating.pdf
    • http://www.gorillawalker.com/cherry-blossoms-sushi-and-takarazuka-seven-years-in-japan.pdf
    • http://www.gorillawalker.com/national-conference-on-mass-transit-crime-and-vandalism-compendium-of.pdf
    • http://www.gorillawalker.com/from-latin-to-spanish-historical-phonology-and-morphology-of-the.pdf
    • http://www.gorillawalker.com/hucow-in-space.pdf
    • http://www.gorillawalker.com/milling.pdf
    • http://www.gorillawalker.com/mary-and-her-little-lamb.pdf
    • http://www.gorillawalker.com/a-manual-of-buddhism-for-advanced-students.pdf
    • http://www.gorillawalker.com/progressivism-a-very-short-introduction.pdf
    • http://www.gorillawalker.com/mellone-s-p
    • 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/