Malicious PDF — malware analysis report

Static analysis result for SHA-256 564188d621adf810…

MALICIOUS

PDF

43.7 KB Created: 2018-12-03 17:09:54 +03:00 Authoring application: CorelDRAW X5 (via Corel PDF Engine Version 15.0.0.486)
MD5: 054aa771d11042c8140a8b1a110a96ad SHA-1: 40a96f633bd590883165c7df2b2b64944e55d393 SHA-256: 564188d621adf810415d0c50cd3955181bbe8c31ba9c50013221e64305248a79
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files on the domain 'www.gorillawalker.com'. This is indicative of a link farm, likely used for SEO manipulation or to distribute a large volume of content, potentially malicious. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was unreadable, limiting further analysis of specific malicious actions.

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/shikarpoor-historic-city-sindh-pakistan-inventory-mapping-of-heritage-properties.pdf
    • http://www.gorillawalker.com/darts-player-by-player.pdf
    • http://www.gorillawalker.com/how-to-know-the-wildflowers-a-guide-to-the-names.pdf
    • http://www.gorillawalker.com/la-biblia-del-sexo-posiciones-spanish-edition.pdf
    • http://www.gorillawalker.com/the-healing-church-practical-programs-for-health-ministries.pdf
    • http://www.gorillawalker.com/the-google-checklist-website-edition-boost-your-online-conversions.pdf
    • http://www.gorillawalker.com/understanding-the-contemporary-middle-east-understanding-series.pdf
    • http://www.gorillawalker.com/public-opinion-developments-and-controversies-in-the-twentieth-century-critical.pdf
    • http://www.gorillawalker.com/world-religions.pdf
    • http://www.gorillawalker.com/faq-teen-life-5-books.pdf
    • http://www.gorillawalker.com/power-of-the-image-essays-on-representation-and-sexuality.pdf
    • http://www.gorillawalker.com/the-gospel-of-buddha-with-active-table-of-contents.pdf
    • http://www.gorillawalker.com/sons-of-camelot-the-fate-of-an-american-dynasty.pdf
    • http://www.gorillawalker.com/this-is-where-to-start-find-superstar-mentors-master-all.pdf
    • http://www.gorillawalker.com/australia.pdf
    • http://www.gorillawalker.com/field-guide-to-academic-leadership.pdf
    • http://www.gorillawalker.com/the-rise-and-fall-of-belarusian-nationalism-1906-150-1931.pdf
    • http://www.gorillawalker.com/becoming-by-cindy-crawford-by-cindy-crawford-with-katherine-o.pdf
    • http://www.gorillawalker.com/cellular-biophysics-vols-1-and-2.pdf
    • http://www.gorillawalker.com/tekken-6-signature-series-strategy-guide-bradygames-signature-guides.pdf
    • http://www.gorillawalker.com/powerpoint-2016-for-dummies-for-dummies-computer-tech.pdf
    • http://www.gorillawalker.com/analyzing-politics-rationality-behavior-and-instititutions-new-institutionalism-in-american.pdf
    • http://www.gorillawalker.com/mozambique-highly-detailed-gps-road-map.pdf
    • http://www.gorillawalker.com/understanding-as-400-system-operations.pdf
    • http://www.gorillawalker.com/jazz-off-key-faithgirlz-blog-on.pdf
    • http://www.gorillawalker.com/erectile-dysfunction-the-natural-way-to-reverse-erection-problem-the.pdf
    • http://www.gorillawalker.com/adventures-beyond-the-body-music-for-out-of-body-travel.pdf
    • http://www.gorillawalker.com/the-adventure-of-being-human-ii-mother-spirit-speaks-more.pdf
    • http://www.gorillawalker.com/fearless-love-making-sexual-choices-that-honor-god-worth-waiting.pdf
    • http://www.gorillawalker.com/6-minute-morning.pdf
    • http://www.gorillawalker.com/physical-therapy-of-the-foot-and-ankle-clinics-in-physical.pdf
    • http://www.gorillawalker.com/discovering-algebra-an-investigative-approach-discovering-mathematics.pdf
    • http://www.gorillawalker.com/the-foundations-of-modern-political-thought-vol-2-the-age.pdf
    • http://www.gorillawalker.com/the-zero-waste-solution-untrashing-the-planet-one-community-at.pdf
    • http://www.gorillawalker.com/the-influence-matrix-strategies-for-engaging-others-to-get-results.pdf
    • http://www.gorillawalker.com/wine-country-architecture-and-interiors.pdf
    • http://www.gorillawalker.com/history-of-the-stewart-of-stuart-family.pdf
    • http://www.gorillawalker.com/the-wonders-of-america-reinventing-jewish-culture-1880-1950.pdf
    • http://www.gorillawalker.com/op-zoek-naar-de-bron-teken-van-zeven-dutch-edition.pdf
    • http://www.gorillawalker.com/the-abcs-of-yoga-for-kids-2015-calendar.pdf
    • http://www.gorillawalker.com/the-google-checklist-website-edition-boost-your-online-conversion
    • 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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