Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a23efaf2faadb3a…

MALICIOUS

PDF

41.9 KB Created: 2019-04-29 18:00:24 +03:00 Authoring application: Adobe Acrobat 10.1 (via Adobe Acrobat 10.1 Paper Capture Plug-in)
MD5: 0d935cc68a72fdaf9e3f859a1cf29eab SHA-1: 41120ea5fc068fda03b3cdac6919f33cf218c1a6 SHA-256: 1a23efaf2faadb3a9808cc0d278c5cf2810a52ac68b5a4d674aa0d08ffcf196c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 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 with high confidence. 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/the-netherlands-indies.pdf
    • http://www.gorillawalker.com/vehicular-networking.pdf
    • http://www.gorillawalker.com/journey-to-the-motherland-from-san-francisco-to-benin-city.pdf
    • http://www.gorillawalker.com/sexy-busty-chick-book-5-hot-chicks-glamour-photos.pdf
    • http://www.gorillawalker.com/behind-the-lines-what-it-really-takes-to-make-it.pdf
    • http://www.gorillawalker.com/the-survival-of-love-memoirs-of-a-resistance-officer.pdf
    • http://www.gorillawalker.com/marigold-the-lost-chance-for-peace-in-vietnam-cold-war.pdf
    • http://www.gorillawalker.com/montana-orphan-bride-the-doctor-s-bargain-bride-montana-brides.pdf
    • http://www.gorillawalker.com/hanging-judge.pdf
    • http://www.gorillawalker.com/civil-justice-quarterly.pdf
    • http://www.gorillawalker.com/common-liar-essay-on-antony-and-cleopatra-study-in-english.pdf
    • http://www.gorillawalker.com/microbe.pdf
    • http://www.gorillawalker.com/selavi-that-is-life-a-haitian-story-of-hope.pdf
    • http://www.gorillawalker.com/iso-6954-2000-mechanical-vibration-guidelines-for-the-measurement-reporting.pdf
    • http://www.gorillawalker.com/all-for-strings-comphehensive-string-method-book-2-violin.pdf
    • http://www.gorillawalker.com/topological-vector-spaces-chapters-1-5.pdf
    • http://www.gorillawalker.com/hundreds-of-deities-of-tusita.pdf
    • http://www.gorillawalker.com/the-godling-chronicles-the-sword-of-truth-book-1-unabridged.pdf
    • http://www.gorillawalker.com/aerosol-sampling-science-and-practice.pdf
    • http://www.gorillawalker.com/godland-volume-5-far-beyond-the-bang.pdf
    • http://www.gorillawalker.com/alosha-alosha-trilogy-kindle-edition.pdf
    • http://www.gorillawalker.com/automatic-control-12th-triennial-world-congress-1993-robust-control-design.pdf
    • http://www.gorillawalker.com/adobe-odes-camino-del-sol.pdf
    • http://www.gorillawalker.com/for-renata.pdf
    • http://www.gorillawalker.com/the-dynamics-of-writing-instruction-a-structured-process-approach-for.pdf
    • http://www.gorillawalker.com/eugenio-espejo-y-el-pensamiento-precursor-de-la-independencia-spanish.pdf
    • http://www.gorillawalker.com/the-private-life-of-the-brain-emotions-consciousness-and-the.pdf
    • http://www.gorillawalker.com/jihad-in-saudi-arabia-violence-and-pan-islamism-since-1979.pdf
    • http://www.gorillawalker.com/ice-cream-store.pdf
    • http://www.gorillawalker.com/vanna-s-choice-easy-crochet-critters-leisure-arts-75266.pdf
    • http://www.gorillawalker.com/zapuphizo.pdf
    • http://www.gorillawalker.com/teaching-with-the-common-core-standards-for-english-language-arts.pdf
    • http://www.gorillawalker.com/design-for-assembly-of-aerospace-structures-a-qualitative-interactive-approach.pdf
    • http://www.gorillawalker.com/contemporary-direct-marketing-05-by-spiller-lisa-s-baier-martin.pdf
    • http://www.gorillawalker.com/elements-of-practical-aerodynamics.pdf
    • http://www.gorillawalker.com/here-comes-winter-a-first-start-easy-reader.pdf
    • http://www.gorillawalker.com/historical-maps-of-world-war-i.pdf
    • http://www.gorillawalker.com/homeless-friendless-and-penniless-the-wpa-interviews-with-former-slaves.pdf
    • http://www.gorillawalker.com/santa-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-interprofessional-health-care-team-leadership-and-development.pdf
    • http://www.gorillawalker.com/civil-ju
    • 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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