Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c13e7fd451d8745…

MALICIOUS

PDF

42.5 KB Created: 2018-11-30 20:34:02 +03:00 Authoring application: dvips(k) 5.993 Copyright 2013 Radical Eye Software (via GPL Ghostscript 9.14)
MD5: 4ee3be0bc7c51868308b30db45833c76 SHA-1: 38d836a391325ca016b4637d85032111c3d38558 SHA-256: 1c13e7fd451d8745404b7f7855a495eaffbfb4a3ed4fed7fafa70436cad81a2c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The embedded URLs likely serve to direct users to potentially malicious content or to manipulate search engine rankings. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/color-atlas-of-oral-pathology-461-figures-in-color.pdf
    • http://www.gorillawalker.com/aiaa-asme-asce-ahs-24th-structures-structural-dynamics-and-materials.pdf
    • http://www.gorillawalker.com/rhetoric-comedy-and-the-violence-of-language-in-aristophanes-clouds.pdf
    • http://www.gorillawalker.com/my-66-years-in-the-big-leagues-dover-baseball.pdf
    • http://www.gorillawalker.com/who-will-win-the-big-game-kindle-edition.pdf
    • http://www.gorillawalker.com/roney-and-ben-s-super-duper-mission-to-mars.pdf
    • http://www.gorillawalker.com/classic-battletech-shattered-sphere-fas1712-battletech-series-1712.pdf
    • http://www.gorillawalker.com/medical-reference-guide-the-clinical-years.pdf
    • http://www.gorillawalker.com/the-ultimate-book-of-cocktails.pdf
    • http://www.gorillawalker.com/photostabilization-of-polymers.pdf
    • http://www.gorillawalker.com/pachelbel-canon-for-soprano-descant-or-tenor-recorder-and-piano.pdf
    • http://www.gorillawalker.com/raising-small-livestock-a-practical-handbook.pdf
    • http://www.gorillawalker.com/lessons-from-madame-chic-20-stylish-secrets-i-learned-while.pdf
    • http://www.gorillawalker.com/falling-for-gin.pdf
    • http://www.gorillawalker.com/eine-teufelsneurose-im-17-jahrhundert-german-edition.pdf
    • http://www.gorillawalker.com/so-worthy-my-love.pdf
    • http://www.gorillawalker.com/bim-comics-issue-1-what-s-the-issue-with-revisions.pdf
    • http://www.gorillawalker.com/soon-baboon-soon.pdf
    • http://www.gorillawalker.com/story-of-harry-singh-sophie-kaur.pdf
    • http://www.gorillawalker.com/how-to-build-outdoor-structures.pdf
    • http://www.gorillawalker.com/magical-unicorn-oracle-cards.pdf
    • http://www.gorillawalker.com/rugs-carpets-techniques-traditions-designs.pdf
    • http://www.gorillawalker.com/myths-of-the-family.pdf
    • http://www.gorillawalker.com/cuidemos-a-nuestra-nueva-ranita-let-s-take-care-of.pdf
    • http://www.gorillawalker.com/photo-sensitive-kreme-klassic-book-27.pdf
    • http://www.gorillawalker.com/the-underwater-dig-introduction-to-marine-archaeology.pdf
    • http://www.gorillawalker.com/les-manuscrits-et-la-miniature-french-edition.pdf
    • http://www.gorillawalker.com/biocomposites-design-and-mechanical-performance-woodhead-publishing-series-in-composites.pdf
    • http://www.gorillawalker.com/phipson-on-evidence.pdf
    • http://www.gorillawalker.com/headlong-hall-nightmare-abbey.pdf
    • http://www.gorillawalker.com/la-triple-alianza-de-1865-escapada-de-un-desastre-en.pdf
    • http://www.gorillawalker.com/gray-wolves-true-books-animals.pdf
    • http://www.gorillawalker.com/delicious-conversations-refelctions-on-autism-intimacy-and-communication.pdf
    • http://www.gorillawalker.com/electronic-packaging-microelectronics-and-interconnection-dictionary.pdf
    • http://www.gorillawalker.com/bouvier-law-dictionary-1856-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/archilab-2013-naturalizing-architecture.pdf
    • http://www.gorillawalker.com/perspectives-on-sex-crime-society.pdf
    • http://www.gorillawalker.com/florida-test-prep-fsa-practice-test-book-mathematics-grade-4.pdf
    • http://www.gorillawalker.com/tales-of-a-prehistoric-sponge-the-rock-cycle-raintree-fusion.pdf
    • http://www.gorillawalker.com/accounting-information-systems-the-processes-and-controls.pdf
    • http://www.gorillawalker.com/my-66-years-in-the-big-leagues-dover-basebal
    • 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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