Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff70b71829d077e…

MALICIOUS

PDF

44.8 KB Created: 2019-04-07 18:03:32 +03:00 Authoring application: FineReader (via -)
MD5: 857e4572c840498e2fbc596000db21c8 SHA-1: 3be3d7fd77355ccf117c9cfacf8c522b80e6b514 SHA-256: 7ff70b71829d077e99c833f2de8354125893f6e3b1a16403556bd8334c0fe564
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. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely used to manipulate search engine rankings or to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/home-cafe-100-recipes-for-irresistible-coffees-and-delectable-desserts.pdf
    • http://www.gorillawalker.com/charleston-icons-50-symbols-of-the-holy-city.pdf
    • http://www.gorillawalker.com/united-we-solve-116-math-problems-for-groups-grades-5.pdf
    • http://www.gorillawalker.com/family-therapy-basics-marital-couple-family-counseling.pdf
    • http://www.gorillawalker.com/there-was-an-old-lady-who-swallowed-a-chick.pdf
    • http://www.gorillawalker.com/smart-antenna-engineering-artech-house-mobile-communications-library.pdf
    • http://www.gorillawalker.com/singapore-in-thematic-maps-an-annotated-carto-bibliography.pdf
    • http://www.gorillawalker.com/the-golden-bough-penguin-twentieth-century-classics-kindle-edition.pdf
    • http://www.gorillawalker.com/exploring-ecclesiology-an-evangelical-and-ecumenical-introduction-by-brad-harper.pdf
    • http://www.gorillawalker.com/seeing-better-in-400-years-telescopes-advance-from-rooftops-to.pdf
    • http://www.gorillawalker.com/first-time-in-london.pdf
    • http://www.gorillawalker.com/introduction-to-matrix-computations-computer-science-and-applied-mathematics.pdf
    • http://www.gorillawalker.com/windows-8-1-the-missing-manual-kindle-edition.pdf
    • http://www.gorillawalker.com/inertial-navigation-systems-analysis-gnss-technology-and-applications.pdf
    • http://www.gorillawalker.com/wind-power-plants-theory-and-design.pdf
    • http://www.gorillawalker.com/firm-abs-flat-tummy-a-pyramid-health-paperback-pyramid-health.pdf
    • http://www.gorillawalker.com/maverick-trading-proven-strategies-for-generating-greater-profits-from-the.pdf
    • http://www.gorillawalker.com/implementing-a-successful-km-programme.pdf
    • http://www.gorillawalker.com/fire-on-the-mountain-past-renewals-present-revivals-and-the.pdf
    • http://www.gorillawalker.com/organizational-communication-theory-and-behavior.pdf
    • http://www.gorillawalker.com/diurnale-marianum-ex-breviario-mariano-in-honorem-ss-virginis-mariae.pdf
    • http://www.gorillawalker.com/letters-on-the-culture-of-the-vine-fermentation-and-the.pdf
    • http://www.gorillawalker.com/start-up-nation-the-story-of-israel-s-economic-miracle.pdf
    • http://www.gorillawalker.com/amphibians-and-reptiles-of-british-columbia.pdf
    • http://www.gorillawalker.com/homegrown-whole-grains-grow-harvest-and-cook-wheat-barley-oats.pdf
    • http://www.gorillawalker.com/shakespeare-in-the-media-from-the-globe-theatre-to-the.pdf
    • http://www.gorillawalker.com/hold-please-acting-edition.pdf
    • http://www.gorillawalker.com/playing-ohio-pick-3-with-indicators-kindle-edition.pdf
    • http://www.gorillawalker.com/treehouses-of-the-world-2011-wall-calendar.pdf
    • http://www.gorillawalker.com/where-the-iron-crosses-grow-the-crimea-1941-44-unabridged.pdf
    • http://www.gorillawalker.com/the-buffalo-kid-paperback.pdf
    • http://www.gorillawalker.com/digital-photographer-s-handbook-4th-edition.pdf
    • http://www.gorillawalker.com/let-s-go-city-guide-2001-rome.pdf
    • http://www.gorillawalker.com/fritz-kahn.pdf
    • http://www.gorillawalker.com/attacked-by-poison-ivy-a-psychological-understanding.pdf
    • http://www.gorillawalker.com/the-mixtake-files-a-nit-picker-s-guide-to-the.pdf
    • http://www.gorillawalker.com/honda-civic-del-sol-1992-thru-1995-all-sohc-models.pdf
    • http://www.gorillawalker.com/101-no-huddle-spread-offense-drills-kindle-edition.pdf
    • http://www.gorillawalker.com/my-secretary-her-fantasy.pdf
    • http://www.gorillawalker.com/how-to-master-day-trading-selection-for-beginners-easy-and.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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