Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c8cf2db909beef…

MALICIOUS

PDF

35.4 KB Created: 2019-11-23 19:52:28 +03:00 Authoring application: ZonBook XSL Stylesheets with Apache FOP (via Apache FOP Version 2.1)
MD5: 9d25d48b05b6cded1538060b3492ca9c SHA-1: 7783b56cf5a16684c00cbde361c4b20a313c50c8 SHA-256: 92c8cf2db909beef1ef0bb489f8e261172f4c7438ea1ac3960ed1801093e78f7
90 Risk Score

Malware Insights

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

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 hosted on 'gorillawalker.com'. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests a link farm or SEO poisoning tactic to drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8255

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/the-baltimore-ravens-team-spirit-norwood.pdf
    • http://www.gorillawalker.com/the-history-of-live-music-in-britain-1950-1967-from.pdf
    • http://www.gorillawalker.com/law-in-a-flash-real-property-law-in-a-flash.pdf
    • http://www.gorillawalker.com/the-einstein-code.pdf
    • http://www.gorillawalker.com/dead-end-lib-world-e-op-095.pdf
    • http://www.gorillawalker.com/training-and-development-how-to-facilitate-effective-training-in-the.pdf
    • http://www.gorillawalker.com/everyone-can-write-essays-toward-a-hopeful-theory-of-writing.pdf
    • http://www.gorillawalker.com/the-thin-woman-kindle-edition.pdf
    • http://www.gorillawalker.com/fighting-for-afghanistan-a-rogue-historian-at-war.pdf
    • http://www.gorillawalker.com/peanuts-2016-mini-wall-calendar.pdf
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    • http://www.gorillawalker.com/les-v-pres-siciliennes-act-iii-aria-in-braccio-alle.pdf
    • http://www.gorillawalker.com/lesbian-erotica-lavender-roses-collection-of-lesbian-romances-humor-and.pdf
    • http://www.gorillawalker.com/a-brief-history-of-germany-brief-history-of-checkmark-books.pdf
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    • http://www.gorillawalker.com/against-management-organization-in-the-age-of-managerialism.pdf
    • http://www.gorillawalker.com/holloway-s-probate-handbook-practitioner-series.pdf
    • http://www.gorillawalker.com/en-la-guerra-a-consumo-honda-civic-hybrid-2009-los.pdf
    • http://www.gorillawalker.com/contemporary-authors-volumes-65-68-vols-65-68.pdf
    • http://www.gorillawalker.com/transforming-the-intern-bimbo-aphrodisiac-menage-and-medical-exam-erotica.pdf
    • http://www.gorillawalker.com/nude-riley-abc-babe-adult-nude-photography-young-naked-girls.pdf
    • http://www.gorillawalker.com/fourth-down-and-inches-concussions-and-football-s-make-or.pdf
    • http://www.gorillawalker.com/how-euler-did-it-spectrum.pdf
    • http://www.gorillawalker.com/the-95-5-code-for-activating-the-law-of-attraction.pdf
    • http://www.gorillawalker.com/the-holistic-inspiration-of-physics-the-underground-history-of-electromagnetic.pdf
    • http://www.gorillawalker.com/got-it-plus-level-2-student-pack-a-a-four.pdf
    • http://www.gorillawalker.com/in-kithairon-s-shadow-a-novel-of-ancient-greece-and.pdf
    • http://www.gorillawalker.com/leaving-certificate-exam-papers-german-higher-and-ordinary-levels.pdf
    • http://www.gorillawalker.com/flowers-of-evil-volume-3.pdf
    • http://www.gorillawalker.com/living-free-of-the-secrets-trilogy-book-3-kindle-edition.pdf
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    • http://www.gorillawalker.com/pictures-at-an-exhibition-arrangement-for-orchestra-part-3-full.pdf
    • http://www.gorillawalker.com/sheep-medicine.pdf
    • http://www.gorillawalker.com/de-d.pdf
    • http://www.gorillawalker.com/building-the-bainbridge-mudhen-abrasion-and-peel-tests-of-popular.pdf
    • http://www.gorillawalker.com/trauer-und-abschied-meine-gedichte-als-ich-einen-geliebten-menschen.pdf
    • http://www.gorillawalker.com/introduction-to-semiconductor-devices-for-computing-and-telecommunications-applications.pdf
    • http://www.gorillawalker.com/aaa-walt-disney-world-where-dreams-come-true
    • 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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