Malicious PDF — malware analysis report

Static analysis result for SHA-256 79a2f5274346aa35…

MALICIOUS

PDF

43.1 KB Created: 2018-12-11 20:30:27 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 8.0.0 (Windows))
MD5: 368244cfd79a99e572b56d08c9e3ce8c SHA-1: 22601713bcd2c00e6be41a3096130318bf5b9d0e SHA-256: 79a2f5274346aa35365ced84d33f8574c99fbf81c75f86af4ce1bd3a4795160e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files on the same domain. While no scripts were explicitly extracted, the presence of embedded URLs within the document body suggests an attempt to redirect the user to external resources. The ML classifier also flagged this PDF as malicious, supporting the assessment of malicious intent.

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/nature-and-landscape-photography-71-tips-from-the-top.pdf
    • http://www.gorillawalker.com/in-monte-viso-s-horizon-climbing-all-the-alpine-4000m.pdf
    • http://www.gorillawalker.com/therapeutic-applications-of-ribozymes-and-riboswitches-methods-and-protocols-methods.pdf
    • http://www.gorillawalker.com/social-work-evaluation-enhancing-what-we-do.pdf
    • http://www.gorillawalker.com/in-pursuit-of-the-unknown-17-equations-that-changed-the.pdf
    • http://www.gorillawalker.com/from-novice-to-expert-excellence-and-power-in-clinical-nursing.pdf
    • http://www.gorillawalker.com/fodor-s-dominican-republic-1st-edition-travel-guide.pdf
    • http://www.gorillawalker.com/handbook-of-pediatric-neurology.pdf
    • http://www.gorillawalker.com/who-was-mother-teresa-turtleback-school-library-binding-edition.pdf
    • http://www.gorillawalker.com/surfboards-made-in-the-u-s-a.pdf
    • http://www.gorillawalker.com/abs-on-the-go.pdf
    • http://www.gorillawalker.com/boards-that-matter-building-blocks-for-implementing-coherent-governance-and.pdf
    • http://www.gorillawalker.com/brownie-the-lonely-dragon.pdf
    • http://www.gorillawalker.com/walking-with-the-devil-the-police-code-of-silence.pdf
    • http://www.gorillawalker.com/gray-s-atlas-of-anatomy-1e-gray-s-anatomy-1st.pdf
    • http://www.gorillawalker.com/synchronizing-geometry.pdf
    • http://www.gorillawalker.com/parkinson-s-disease-an-entry-from-thomson-gale-s-gale.pdf
    • http://www.gorillawalker.com/a-piece-of-the-pie-the-battle-over-nationalisation.pdf
    • http://www.gorillawalker.com/ethnicity-and-empire-in-kenya-loyalty-and-martial-race-among.pdf
    • http://www.gorillawalker.com/rattlesnakes-zoobooks-series.pdf
    • http://www.gorillawalker.com/raising-a-hockey-champion-a-complete-guide-to-unlocking-your.pdf
    • http://www.gorillawalker.com/the-message-solo-women-s-devotional.pdf
    • http://www.gorillawalker.com/gps-for-mariners.pdf
    • http://www.gorillawalker.com/osha-compliance-management-a-guide-for-long-term-health-care.pdf
    • http://www.gorillawalker.com/write-through-the-bible-junior-philippians-2-1-18-esv.pdf
    • http://www.gorillawalker.com/wild-abandon.pdf
    • http://www.gorillawalker.com/spontaneous-emission-and-laser-oscillation-in-microcavities-laser-optical-science.pdf
    • http://www.gorillawalker.com/shark-attack-crabtree-contact.pdf
    • http://www.gorillawalker.com/12-bar-blues-riffs-25-classic-patterns-arranged-for-guitar.pdf
    • http://www.gorillawalker.com/wisdom-of-the-wound-discovering-a-path-to-wholeness.pdf
    • http://www.gorillawalker.com/the-baker-illustrated-bible-handbook-kindle-edition.pdf
    • http://www.gorillawalker.com/my-parents-keeper-adult-children-of-the-emotionally-ill.pdf
    • http://www.gorillawalker.com/public-health-administration.pdf
    • http://www.gorillawalker.com/conversations-with-mary-mccarthy-literary-conversations-series.pdf
    • http://www.gorillawalker.com/external-prestressing-in-bridges-sp-120.pdf
    • http://www.gorillawalker.com/the-500-hidden-secrets-of-amsterdam.pdf
    • http://www.gorillawalker.com/the-french-way-aspects-of-behavior-attitudes-and-customs-of.pdf
    • http://www.gorillawalker.com/beginning-oracle-database-12c-administration-from-novice-to-professional.pdf
    • http://www.gorillawalker.com/frommer-s-munich-and-the-bavarian-alps-frommer-s-complete.pdf
    • http://www.gorillawalker.com/prince-igor-chorus-of-the-peasants-full-score-qty-4.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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