Malicious PDF — malware analysis report

Static analysis result for SHA-256 df503e4c0da277c5…

MALICIOUS

PDF

41.7 KB Created: 2018-12-15 08:11:31 +03:00 Authoring application: FrameMaker 7.0 (via Acrobat Distiller 5.0.5 (Windows); modified using iText® 5.5.4 ©2000-2014 iText Group NV (AGPL-version))
MD5: ab17abfa892f6c154f44378762d60e85 SHA-1: 8883e59fddc4b657d7189edb79210b9ec0fba30a SHA-256: df503e4c0da277c55f59039dd7cc9ec0604a63d680cfaffaf2ad173e29381d92
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier as malicious and contains a large number of external links, indicating a link farm. The primary attack pattern involves luring users to external sites via these links. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/natural-solutions-for-food-allergies-and-food-intolerances-scientifically-proven.pdf
    • http://www.gorillawalker.com/the-godroom.pdf
    • http://www.gorillawalker.com/oxford-textbook-of-vertigo-and-imbalance-oxford-textbooks-in-clinical.pdf
    • http://www.gorillawalker.com/the-assassination-of-new-york.pdf
    • http://www.gorillawalker.com/my-benjamin-bunny-notebook.pdf
    • http://www.gorillawalker.com/travel-journal-ghana.pdf
    • http://www.gorillawalker.com/mad-merlin.pdf
    • http://www.gorillawalker.com/jonah-and-the-very-big-fish-arch-books.pdf
    • http://www.gorillawalker.com/at-risk-youth-an-annotated-bibliography-for-migrant-educators.pdf
    • http://www.gorillawalker.com/it-is-well-with-my-soul-handbell-sheet-music-handbell.pdf
    • http://www.gorillawalker.com/heal-your-body-the-mental-causes-for-physical-illness-and.pdf
    • http://www.gorillawalker.com/true-world-history-humanity-s-saga-kindle-edition.pdf
    • http://www.gorillawalker.com/fantasies-online.pdf
    • http://www.gorillawalker.com/gabriel-schoenfeld-snecessary-secrets-national-security-the-media-and-the.pdf
    • http://www.gorillawalker.com/28-italian-songs-arias-of-the-17th-18th-centuries-medium.pdf
    • http://www.gorillawalker.com/the-nile-without-a-dragoman-cambridge-library-collection-travel-middle.pdf
    • http://www.gorillawalker.com/snakes-of-virginia.pdf
    • http://www.gorillawalker.com/strength-training-for-rugby.pdf
    • http://www.gorillawalker.com/a-guide-to-the-bukit-timah-nature-reserve.pdf
    • http://www.gorillawalker.com/modern-woodworking-tools-materials-and-processes.pdf
    • http://www.gorillawalker.com/autumn-poems-songs-prayers-weather-windows.pdf
    • http://www.gorillawalker.com/tabo-monastery-and-buddhism-in-the-trans-himalayas-1000-years.pdf
    • http://www.gorillawalker.com/i-heart-you-you-haunt-me.pdf
    • http://www.gorillawalker.com/mass-misunderstandings-the-mixed-legacy-of-the-vatican-ii-liturgical.pdf
    • http://www.gorillawalker.com/minitutorials-for-adobe-indesign-a-quick-reference-for-beginners-and.pdf
    • http://www.gorillawalker.com/travels-in-languedoc-secrets-to-a-memorable-visit.pdf
    • http://www.gorillawalker.com/sailors-sailors.pdf
    • http://www.gorillawalker.com/more-allegheny-episodes-legends-and-traditions-old-and-new-gathered.pdf
    • http://www.gorillawalker.com/citizenship-the-self-and-the-other-critical-discussions-on-citizenship.pdf
    • http://www.gorillawalker.com/montana-before-history.pdf
    • http://www.gorillawalker.com/an-introduction-to-fish-parasitological-methods-classical-and-molecular-techniques.pdf
    • http://www.gorillawalker.com/intermediate-bridge-i.pdf
    • http://www.gorillawalker.com/a-morning-cup-of-balance-the-morning-cup-series.pdf
    • http://www.gorillawalker.com/the-voter-s-dilemma-and-democratic-accountability-latin-american-and.pdf
    • http://www.gorillawalker.com/dysphagia-diagnosis-and-management.pdf
    • http://www.gorillawalker.com/eating-fractions.pdf
    • http://www.gorillawalker.com/caveat-emptor-a-novel-of-the-roman-empire.pdf
    • http://www.gorillawalker.com/questionable-intentions-the-crew-book-3-kindle-edition.pdf
    • http://www.gorillawalker.com/people-apart-1950s-cape-town-revisited-photographs-by-bryan-heseltine.pdf
    • http://www.gorillawalker.com/lombricoltura-para-principiantes-empezar-tu-propia-lombricoltura-y-hacer-tu.pdf
    • http://www.gorillawalker.com
    • 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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