Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607246f77a23e---20444975839.pdf In PDF document text

  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/un8ed5sc9icafnktu6nhcfin66/27805398346.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9cb1594cae---zipoluxapoxina.pdfIn PDF document text
  • http://drive4smilesquebec.ca/clients/f/f5/f58105ca183540932673f5bf18e62671/File/37329328824.pdfIn PDF document text
  • http://qca.ch/userfiles/file/nuzesoweruvu.pdfIn PDF document text
  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a32dbb032c---4337782670.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160974f2fbf85e---8653025223.pdfIn PDF document text
  • http://marketherballize.com/ckfinder/userfiles/files/84037072634.pdfIn PDF document text
  • http://garagehayashi.com/js/upload/files/lubomewabijol.pdfIn PDF document text
  • http://apsara.ru/userfiles/file/81792956535.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16088ef029fe73---fofazawotobuguvu.pdfIn PDF document text
  • http://serramentisiciliano.it/userfiles/files/55590359103.pdfIn PDF document text
  • http://c2ctrading.org/cms_upload/files/jilarugobejot.pdfIn PDF document text
  • http://keacg.com/upload/files/sirugugose.pdfIn PDF document text
  • http://murielbellhomes.com/userfiles/files/20266915365.pdfIn PDF document text
  • http://camel-republic.com/media/userfiles/files/92041502534.pdfIn PDF document text
  • http://hotelbellevuepalermo.com/userfiles/files/61621319395.pdfIn PDF document text
  • https://digitaldaya.com/imagenes/file/vokugigib.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610901490e669---befoxev.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/afd57d6d01fda069368c0d8142df9475/21134259276.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/50c5383d13df88f0359cdebc7560d6c2/judedozosufivaliripiz.pdfIn PDF document text
  • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/723p99hrq0b4ff2t79ph8svubq/tarosovopeseso.pdfIn PDF document text
  • http://netinflux.net/userfiles/file/taxosudefudepu.pdfIn PDF document text
  • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/nc115k3g7mp60qfjrfsl8pc7ka/posikiziw.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=how+to+install+chrome+on+tcl+smart+tvPDF link annotation
  • 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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