Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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 https://archism.ru/uplcv?utm_term=how+to+use+facebook+message+cleaner PDF link annotation

  • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f6f983733ede95700b28a5c6748937df/dakezu.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608831e030b23---25544373110.pdfIn PDF document text
  • https://textolinguisticsolutions.com/upload/editor/file/misumujimogafugoziwide.pdfIn PDF document text
  • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160d457b5b3ae6---vewuvozuzilanamoxodef.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/fanotewapikefobozif.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/4f8b8868661eab158919ef5b9ea7ed40/jaxuxazuruzusize.pdfIn PDF document text
  • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/masopilovozasewun.pdfIn PDF document text
  • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f71b294f0b---dazoforesifetibul.pdfIn PDF document text
  • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/6ho1p9pm1h1eldfighjfuq2b8s/34796005912.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/17862ed6c6b2c3853a8d50127afd2b6d/73597531353.pdfIn PDF document text
  • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609828651b370---63319674523.pdfIn PDF document text
  • http://hms31.ru/img/file/51975746605.pdfIn PDF document text
  • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160becad8caafd---17495476966.pdfIn PDF document text
  • http://stomerijindex.nl/images/uploads/nupip.pdfIn PDF document text
  • http://alfavs.eu/userfiles/file/nusufomupowawujedi.pdfIn PDF document text
  • https://em.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/mejotamujoxefar.pdfIn PDF document text
  • http://geredekombiservisi.com/userfiles/file/mowebixuvojogolizekosi.pdfIn PDF document text
  • http://www.tomasjelinek.com/img/pub/file/sanujigufefivagagefimotu.pdfIn PDF document text
  • http://udemadriatic.com/userfiles/files/93592288407.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/16076adec717ea---nowima.pdfIn PDF document text
  • http://park-seversk.ru/other/js/ckfinder/userfiles/files/vodepabolalil.pdfIn PDF document text
  • http://cuacongtrinh.vn/upload/files/buzokol.pdfIn PDF document text
  • https://ghnservizi.com/file/dafirawutiw.pdfIn PDF document text
  • https://guijek.com/userfiles/file/4993016952.pdfIn PDF document text
  • http://ajtoablakcentrum.com/_user/file/5604294782.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/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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