Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ed32ba602bda1b2…

MALICIOUS

PDF

46.6 KB Created: 2018-12-02 10:55:52 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via iText 2.1.7 by 1T3XT)
MD5: 7433877da217dbc58e6fff87b21557ae SHA-1: ac71dac425fbd2c8b4fdcbeaf27052d13fba8d83 SHA-256: 4ed32ba602bda1b2f687fad3e9c9769174a08e88d9b72113b7af210459a29778
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and exhibits a large number of embedded external links, characteristic of SEO spam or a link farm. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' with 32 external links, suggesting the document's purpose is to redirect users to various web pages. No scripts were extracted, and the document body was unreadable, limiting further analysis of specific user lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8263

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/utah-s-incredible-backcountry-trails.pdf
    • http://www.gorillawalker.com/tales-of-the-slayer-volume-3-buffy-the-vampire-slayer.pdf
    • http://www.gorillawalker.com/cien-facetas-del-sr-diamonds-vol-7-9-spanish-edition.pdf
    • http://www.gorillawalker.com/lonely-planet-pocket-shanghai-travel-guide.pdf
    • http://www.gorillawalker.com/habilitat-s-celebrity-coockbook.pdf
    • http://www.gorillawalker.com/celtic-cycles-guidance-from-the-soul-on-the-spiritual-journey.pdf
    • http://www.gorillawalker.com/the-billionaire-s-secret-wife-2-bwwm-romance-kindle-edition.pdf
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    • http://www.gorillawalker.com/a-beautiful-offering-returning-god-s-love-with-your-life.pdf
    • http://www.gorillawalker.com/chromium-vi-handbook.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-civil-liberties-in-america.pdf
    • http://www.gorillawalker.com/bioinorganic-chemistry-inorganic-elements-in-the-chemistry-of-life-an.pdf
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    • http://www.gorillawalker.com/german-expressionism-documents-from-the-end-of-the-wilhelmine-empire.pdf
    • http://www.gorillawalker.com/mobile-cellular-telecommunications-systems.pdf
    • http://www.gorillawalker.com/annual-report-of-the-iowa-state-agricultural-society.pdf
    • http://www.gorillawalker.com/sculpture-victorious-art-in-an-age-of-invention-1837-150.pdf
    • http://www.gorillawalker.com/thomas-guide-2008-easy-to-read-riverside-california-thomas-guide.pdf
    • http://www.gorillawalker.com/mas-pendejadas-celebres-en-la-historia-de-mexico-spanish-edition.pdf
    • http://www.gorillawalker.com/the-other-side-of-the-rainbow-behind-the-scenes-on.pdf
    • http://www.gorillawalker.com/armenia-a-historical-atlas.pdf
    • http://www.gorillawalker.com/mientras-te-hago-el-amor-relatos-para-leer-en-pareja.pdf
    • http://www.gorillawalker.com/pearson-reviews-rationales-medical-surgical-nursing-with-nursing-reviews-rationales.pdf
    • http://www.gorillawalker.com/la-verdad-bajo-la-tierra-guatemala-el-genocidio-silenciado.pdf
    • http://www.gorillawalker.com/fanatical-ever-present-since-1968-an-incredible-journey.pdf
    • http://www.gorillawalker.com/aci-550-3-13-design-specification-for-unbonded-post-tensioned.pdf
    • http://www.gorillawalker.com/trail-of-tears-rise-and-fall-of-the-cherokee-nation.pdf
    • http://www.gorillawalker.com/around-the-world-world-wire-an-article-from-winnipeg-free.pdf
    • http://www.gorillawalker.com/somalia-major-muslim-nations-kindle-edition.pdf
    • http://www.gorillawalker.com/nato-under-attack-why-the-western-alliance-can-fight-outnumbered.pdf
    • http://www.gorillawalker.com/sticker-dolly-dressing-princesses-usborne-activities.pdf
    • http://www.gorillawalker.com/vintage-flowers-at-version-author-otto-anja.pdf
    • http://www.gorillawalker.com/somatic-lessons-narrating-patienthood-and-illness-in-indian-medical-literature.pdf
    • http://www.gorillawalker.com/trading-with-the-enemy-the-nazi-american-money-plot-1933.pdf
    • http://www.gorillawalker.com/churches-of-iceland-religious-art-and-arch.pdf
    • http://www.gorillawalker.com/the-don-the-definitive-biography-of-sir-donald-bradman.pdf
    • http://www.gorillawalker.com/beauty-therapy-fact-file-student-book.pdf
    • 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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