Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92485c9f0e4ceeb…

MALICIOUS

PDF

41.6 KB Created: 2019-03-17 06:33:32 +03:00 Authoring application: - (via iText 2.1.0 (by lowagie.com))
MD5: c89106496f635cb2747bfc4d594f38c7 SHA-1: 69327b529901f8dc6ee50a03eccadb1c14272b44 SHA-256: c92485c9f0e4ceebec29e5da83b10c3a8ca726e025e67d4a258a844cd64e9173
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/lectures-in-aerospace-medicine-16-20-january-1961-conducted-at.pdf
    • http://www.gorillawalker.com/passionate-communities-reading-lesbian-resistance-in-jane-rule-s-fiction.pdf
    • http://www.gorillawalker.com/100-years-of-the-manchester-ship-canal-1894-1994.pdf
    • http://www.gorillawalker.com/physics-the-physical-setting-barron-s-regents-exams-and-answers.pdf
    • http://www.gorillawalker.com/reflections-on-equestrian-art.pdf
    • http://www.gorillawalker.com/the-descent-of-man.pdf
    • http://www.gorillawalker.com/sm-intermediate-emergency-care-irm.pdf
    • http://www.gorillawalker.com/confessions-of-felix-krull-confidence-man-memoirs-part-i.pdf
    • http://www.gorillawalker.com/yes-let-s.pdf
    • http://www.gorillawalker.com/the-reign-of-napoleon-bonaparte.pdf
    • http://www.gorillawalker.com/hello-alzheimer-s-good-bye-dad-a-daughter-s-journal.pdf
    • http://www.gorillawalker.com/at-his-pleasure-training-addie-billionaire-bondage-erotica-1.pdf
    • http://www.gorillawalker.com/smithsonian-handbooks-herbs-smithsonian-handbooks.pdf
    • http://www.gorillawalker.com/taylor-swift-guitar-chord-songbook-guitar-chord-songbooks.pdf
    • http://www.gorillawalker.com/dictionary-of-analysis-calculus-and-differential-equations-comprehensive-dictionary-of.pdf
    • http://www.gorillawalker.com/runaways-the-complete-collection-volume-3.pdf
    • http://www.gorillawalker.com/poultry-inspection-anatomy-physiology-and-disease-conditions-meat-inspection.pdf
    • http://www.gorillawalker.com/advanced-connection-systems-for-architectural-glazing-springerbriefs-in-applied-sciences.pdf
    • http://www.gorillawalker.com/hal-leonard-tuxedo-junction-tenor-sax-trobone-guitar-bass-drums.pdf
    • http://www.gorillawalker.com/the-art-of-film-music.pdf
    • http://www.gorillawalker.com/road-racing-technique-and-training.pdf
    • http://www.gorillawalker.com/berkshire-encyclopedia-of-sustainability-vol-2-the-business-of-sustainability.pdf
    • http://www.gorillawalker.com/green-energy-green-scene.pdf
    • http://www.gorillawalker.com/the-art-of-the-fellowship-of-the-ring-the-lord.pdf
    • http://www.gorillawalker.com/municipal-benchmarks-assessing-local-perfomance-and-establishing-community-standards.pdf
    • http://www.gorillawalker.com/french-step-by-step-a-unique-short-cut-method-to.pdf
    • http://www.gorillawalker.com/the-spirit-of-allah-khomeini-and-the-islamic-revolution.pdf
    • http://www.gorillawalker.com/solo-tuya-jamas-conseguir-s-que-me-enamore-de-ti.pdf
    • http://www.gorillawalker.com/employee-assistance-programmes-and-workplace-counselling-wiley-series-in-work.pdf
    • http://www.gorillawalker.com/parables-as-subversive-speech-jesus-as-pedagogue-of-the-oppressed.pdf
    • http://www.gorillawalker.com/generations-at-risk-reproductive-health-and-the-environment.pdf
    • http://www.gorillawalker.com/collins-cobuild-advanced-dictionary.pdf
    • http://www.gorillawalker.com/fat-men-in-skirts-acting-edition.pdf
    • http://www.gorillawalker.com/greece-the-culture-lands-peoples-and-cultures.pdf
    • http://www.gorillawalker.com/teaching-stories.pdf
    • http://www.gorillawalker.com/corvette-car-a-day-calendar-2015.pdf
    • http://www.gorillawalker.com/beauty-therapy-the-foundations-2016-level-2-the-official-guide.pdf
    • http://www.gorillawalker.com/infringement.pdf
    • http://www.gorillawalker.com/treasure-jest-of-best-puns.pdf
    • http://www.gorillawalker.com/gabel-signals-and-linear-systems-2ed.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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