Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcee5b596e184a6c…

MALICIOUS

PDF

44.1 KB Created: 2018-12-14 21:05:07 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 4.0 para Windows)
MD5: 0534d69092f14123e8970c9e3fe99a6d SHA-1: a1910662b1a2482ab34d33d2d3e0fd443b8d3b3b SHA-256: fcee5b596e184a6c405fbd41427284ff49fcdb0338f2c4cdd5175e089cd6b83f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files, primarily hosted on www.gorillawalker.com. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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-life-changing-power-of-the-holy-spirit-insights-from.pdf
    • http://www.gorillawalker.com/an-account-of-the-arctic-regions-with-a-history-and.pdf
    • http://www.gorillawalker.com/micro-cutting-fundamentals-and-applications-microsystem-and-nanotechnology.pdf
    • http://www.gorillawalker.com/winning-the-profit-game-smarter-pricing-smarter-branding.pdf
    • http://www.gorillawalker.com/film-as-social-practice-iv-studies-in-culture-and-communication.pdf
    • http://www.gorillawalker.com/midas-flesh-vol-2.pdf
    • http://www.gorillawalker.com/in-defense-of-heterosexuality.pdf
    • http://www.gorillawalker.com/sears-zemansky-s-university-physics-13th-edition-vol-1.pdf
    • http://www.gorillawalker.com/erotic-tales-of-the-nyphrazi-parts-1-3-omnibus.pdf
    • http://www.gorillawalker.com/the-magic-school-bus-explores-the-solar-system-scholastic-s.pdf
    • http://www.gorillawalker.com/nursing-my-husband-s-billionaire-boss-hotwife-cuckold-adult-nursing.pdf
    • http://www.gorillawalker.com/castaway-with-the-savage-nymph-hardcore-anal-survival-erotica-the.pdf
    • http://www.gorillawalker.com/the-romance-of-a-poor-young-man.pdf
    • http://www.gorillawalker.com/communication-skills-for-the-processing-of-words.pdf
    • http://www.gorillawalker.com/faust-1-2-originaler-text-mit-vielen-abbildungen-german-edition.pdf
    • http://www.gorillawalker.com/complete-digital-design-a-comprehensive-guide-to-digital-electronics-and.pdf
    • http://www.gorillawalker.com/petrarch-poet-and-humanist-writers-of-italy-series.pdf
    • http://www.gorillawalker.com/thailand-travel-pack-globetrotter-travel-guide.pdf
    • http://www.gorillawalker.com/behavioral-and-social-science-50-years-of-discovery.pdf
    • http://www.gorillawalker.com/reptile-medicine-and-surgery.pdf
    • http://www.gorillawalker.com/fundamentals-of-survey-measurement-and-analysis.pdf
    • http://www.gorillawalker.com/burton-holmes-travelogues-volume-thirteen-brazil-the-argentine-chile-iguassu.pdf
    • http://www.gorillawalker.com/mastering-autocad-release-14.pdf
    • http://www.gorillawalker.com/the-edinburgh-history-of-the-greeks-c-500-to-1050.pdf
    • http://www.gorillawalker.com/cch-federal-securities-law-reporter-decisions-transfer-binders-1941-through.pdf
    • http://www.gorillawalker.com/proceedings-of-the-u-s-japan-seminar-on-piezoelectric-polymers.pdf
    • http://www.gorillawalker.com/k2-challenging-the-sky.pdf
    • http://www.gorillawalker.com/machine-vision-third-edition-theory-algorithms-practicalities-signal-processing-and.pdf
    • http://www.gorillawalker.com/the-dental-clinics-of-north-america-volume-28-number-3.pdf
    • http://www.gorillawalker.com/the-mother-s-songs-images-of-god-the-mother.pdf
    • http://www.gorillawalker.com/diet-nutrition-in-oral-health-2nd-07-by-paperback-2006.pdf
    • http://www.gorillawalker.com/a-guide-to-public-buying.pdf
    • http://www.gorillawalker.com/contemporary-sport-leisure-and-ergonomics.pdf
    • http://www.gorillawalker.com/applied-reservoir-engineering-vol-2.pdf
    • http://www.gorillawalker.com/issues-facing-christians-today.pdf
    • http://www.gorillawalker.com/stepfamilies-the-restructuring-process.pdf
    • http://www.gorillawalker.com/quantitative-genetics-and-selection-in-plant-breeding.pdf
    • http://www.gorillawalker.com/el-arte-de-la-guerra-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/solar-system-superhero-turtleback-school-library-binding-edition-stink-pb.pdf
    • http://www.gorillawalker.com/guinness-book-of-sitcoms-over-1000-situation-comedies-on-british.pdf
    • http://www.gorillawalker.com/micro-cutting-fundamentals-and-applications-micro
    • 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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