Malicious PDF — malware analysis report

Static analysis result for SHA-256 73ad4a507b9407f3…

MALICIOUS

PDF

35.0 KB Created: 2019-10-29 08:41:33 +03:00 Authoring application: DVIPSONE 2.2.4 http://www.YandY.com (via Acrobat Distiller 7.0.5 (Windows))
MD5: 869bc7235eaa45d6bfadfef5376d2ff1 SHA-1: c7eb773a3236256aeb710bd89332c313221524dd SHA-256: 73ad4a507b9407f33f3aa49ad4a4bc4626cae85787795a562a4507a706376fef
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. While no scripts were explicitly extracted, the ML classifier flagged the PDF as malicious, suggesting it likely exploits PDF vulnerabilities or uses obfuscated JavaScript to achieve its objective. The primary goal appears to be link farming or distributing malicious content via these numerous external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8018

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/die-gr-nen-eine-interpretationshilfe-german-edition.pdf
    • http://www.gorillawalker.com/complexity-artificial-life-research-methods-paperback.pdf
    • http://www.gorillawalker.com/syrah-grenache-and-mourvedre-grape-guides-to-varieties.pdf
    • http://www.gorillawalker.com/the-twentieth-century-pulpit.pdf
    • http://www.gorillawalker.com/biowarfare-in-america.pdf
    • http://www.gorillawalker.com/irish-harp-music-traditional-and-original-irish-airs-arranged-for.pdf
    • http://www.gorillawalker.com/lehrbuch-der-mathematischen-physik-band-2-klassische-feldtheorie-german-edition.pdf
    • http://www.gorillawalker.com/lies-my-pastor-told-me-lies-hip-hop-told-me.pdf
    • http://www.gorillawalker.com/vitality-igniting-your-organization-s-spirit-crisp-trade-books.pdf
    • http://www.gorillawalker.com/gas-chromatography-analytical-chemistry-by-open-learning.pdf
    • http://www.gorillawalker.com/reading-photography.pdf
    • http://www.gorillawalker.com/hal-leonard-the-disney-heroes-collection-recorder-fun-3-book.pdf
    • http://www.gorillawalker.com/unprotected-labor-household-workers-politics-and-middle-class-reform-in.pdf
    • http://www.gorillawalker.com/the-roulette-experiment-kindle-edition.pdf
    • http://www.gorillawalker.com/specifications-for-identity-and-purity-of-thickening-agents-anticaking-agents.pdf
    • http://www.gorillawalker.com/pakistan-s-quagmire-security-strategy-and-the-future-of-the.pdf
    • http://www.gorillawalker.com/chopin-fantasie-impromptu-sheet-music.pdf
    • http://www.gorillawalker.com/my-life-as-an-explorer-hunt-for-the-past.pdf
    • http://www.gorillawalker.com/the-rough-guide-to-southeast-asia-on-a-budget-1.pdf
    • http://www.gorillawalker.com/dokono-the-donkey-kindle-edition.pdf
    • http://www.gorillawalker.com/autism-spectrum-disorders-issues-in-assessment-and-intervention.pdf
    • http://www.gorillawalker.com/advanced-custom-motorcycle-wiring-revised-edition.pdf
    • http://www.gorillawalker.com/the-open-mind-exploring-the-6-patterns-of-natural-intelligence.pdf
    • http://www.gorillawalker.com/angel-or-not-angel-for-sure.pdf
    • http://www.gorillawalker.com/urban-people-and-places-the-sociology-of-cities-suburbs-and.pdf
    • http://www.gorillawalker.com/la-prueba-del-cielo-el-viaje-de-un-neurocirujano-a.pdf
    • http://www.gorillawalker.com/porky-and-bess-step-into-reading.pdf
    • http://www.gorillawalker.com/the-west-islam-and-islamism-is-ideological-islam-compatible-with.pdf
    • http://www.gorillawalker.com/fractals-unit-c5.pdf
    • http://www.gorillawalker.com/applied-microbial-systematics.pdf
    • http://www.gorillawalker.com/samkhya-darshan-yogic-perspective-on-theories-of-realism.pdf
    • http://www.gorillawalker.com/reading-comprehension-grade-8-the-100-series-153.pdf
    • http://www.gorillawalker.com/organic-metamorphism-and-geothermal-history-microscopic-study-of-organic-matter.pdf
    • http://www.gorillawalker.com/stout-v-jefferson-county-board-of-education-u-s-supreme.pdf
    • http://www.gorillawalker.com/rites-of-the-republic-citizens-theatre-and-the-politics-of.pdf
    • http://www.gorillawalker.com/engage-transforming-healthcare-through-digital-patient-engagement.pdf
    • http://www.gorillawalker.com/diplodocus.pdf
    • http://www.gorillawalker.com/nutrition-for-serious-athletes-paperback.pdf
    • http://www.gorillawalker.com/ant-man-giant-man-epic-collection-the-man-in-the.pdf
    • http://www.gorillawalker.com/a-frog-and-a-toad-how-are-they-different-library.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://www.YandY.com
    • 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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