Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46144a3b9db5296…

MALICIOUS

PDF

45.2 KB Created: 2018-11-14 11:20:32 +03:00 Authoring application: - (via Mac OS X 10.6.7 Quartz PDFContext) First seen: 2018-11-20
MD5: 26419f474c8398f9af662a99285f35e8 SHA-1: 07fbaa3850eb3bb63e5874c7199db0215a51f711 SHA-256: c46144a3b9db52968044fe993414ff59df21a6e4d359b450273d3e6248fe77d4
92 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to an external PDF file, suggesting a lure to download further content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of the external link and the ML classification strongly indicate a malicious intent to redirect the user to a potentially harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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/case-study-in-aircraft-design-the-boeing-727-case-studies.pdf In PDF document text
    • http://www.gorillawalker.com/liquid-interfacial-systems-oscillations-and-instability-surfactant-science.pdfIn PDF document text
    • http://www.gorillawalker.com/teasing-trent-the-alexanders-prequel-unabridged-audible-audio-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/nationally-competitive-scholarships-serving-students-and-the-public-good.pdfIn PDF document text
    • http://www.gorillawalker.com/identity-and-modernity-in-latin-america.pdfIn PDF document text
    • http://www.gorillawalker.com/the-food-lover-s-tiptionary-an-a-to-z-culinary.pdfIn PDF document text
    • http://www.gorillawalker.com/steppes-the-plants-and-ecology-of-the-world-s-semi.pdfIn PDF document text
    • http://www.gorillawalker.com/or-consequence.pdfIn PDF document text
    • http://www.gorillawalker.com/design-and-operation-for-abnormal-conditions-bk-3.pdfIn PDF document text
    • http://www.gorillawalker.com/passages-level-1-full-contact.pdfIn PDF document text
    • http://www.gorillawalker.com/line-color-form-the-language-of-art-and-design.pdfIn PDF document text
    • http://www.gorillawalker.com/heroin-its-history-pharmacology-treatment-the-library-of-addictive-drugs.pdfIn PDF document text
    • http://www.gorillawalker.com/the-arsenal-the-survivalist-16.pdfIn PDF document text
    • http://www.gorillawalker.com/towards-the-third-modernity-how-ordinary-people-are-transforming-the.pdfIn PDF document text
    • http://www.gorillawalker.com/holt-world-history-human-journey-graphic-organizer-activites-grades-9.pdfIn PDF document text
    • http://www.gorillawalker.com/cult-of-mirrors.pdfIn PDF document text
    • http://www.gorillawalker.com/coconut-health-lose-weight-lower-cholesterol-improve-your-memory-hair.pdfIn PDF document text
    • http://www.gorillawalker.com/rules-in-school-teaching-discipline-in-the-responsive-classroom.pdfIn PDF document text
    • http://www.gorillawalker.com/geology-of-the-kericho-area-degree-sheet-42-n-w.pdfIn PDF document text
    • http://www.gorillawalker.com/lender-liability-4th-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/horus-heresy-legion-secrets-and-lies.pdfIn PDF document text
    • http://www.gorillawalker.com/all-s-fair-love-war-and-running-for-president.pdfIn PDF document text
    • http://www.gorillawalker.com/dancing-to-a-black-man-s-tune-a-life-of.pdfIn PDF document text
    • http://www.gorillawalker.com/industrial-design-world-of-art.pdfIn PDF document text
    • http://www.gorillawalker.com/play-craps-and-win-big-develop-your-own-winning-strategy.pdfIn PDF document text
    • http://www.gorillawalker.com/the-secret-of-crescent-grey-spitfire-s-grave-part-two.pdfIn PDF document text
    • http://www.gorillawalker.com/newport-and-its-cottages.pdfIn PDF document text
    • http://www.gorillawalker.com/electrode-kinetics-for-chemists-chemical-engineers-and-material-scientists.pdfIn PDF document text
    • http://www.gorillawalker.com/poland-czech-republic-slovakia-travel-scout-24-map.pdfIn PDF document text
    • http://www.gorillawalker.com/obras-primas-da-m-sica-cl-ssica-para-a-flauta.pdfIn PDF document text
    • http://www.gorillawalker.com/image-icon-economy-the-byzantine-origins-of-the-contemporary-imaginary.pdfIn PDF document text
    • http://www.gorillawalker.com/barragan-armando-salas-portugal-photographs-of-the-architecture-of-luis.pdfIn PDF document text
    • http://www.gorillawalker.com/the-partnership-the-making-of-goldman-sachs.pdfIn PDF document text
    • http://www.gorillawalker.com/teaching-primary-drama.pdfIn PDF document text
    • http://www.gorillawalker.com/physical-geology-earth-revealed.pdfIn PDF document text
    • http://www.gorillawalker.com/digital-vlsi-design-with-verilog-a-textbook-from-silicon-valley.pdfIn PDF document text
    • http://www.gorillawalker.com/strangers-to-these-shores-race-and-ethnic-relations-in-the.pdfIn PDF document text
    • http://www.gorillawalker.com/the-mosaic-polity-sources-in-early-modern-economics-ethics-and.pdfIn PDF document text
    • http://www.gorillawalker.com/start-run-an-event-planning-business.pdfIn PDF document text
    • http://www.gorillawalker.com/uncommon-bible-studies-small-group-resources.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00001818.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1818 29606 bytes
SHA-256: 50bd2932b961a0c8f95d25235b1c42201fe1dfa04f4c4870d014a982aca552b8

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