Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://smidgel.ru/uplcv?utm_term=the+violinist%27s+thumb+pdf PDF link annotation

  • http://naturestuff.nl/siteimages/file/16935969565.pdfIn PDF document text
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161350ce4b9e37---18383435129.pdfIn PDF document text
  • http://secretinvitation.net/images/files/90574154818.pdfIn PDF document text
  • https://tideandtigers.com/ckfinder/userfiles/files/rokegaronebabofit.pdfIn PDF document text
  • https://sailstudy.in/ckfinder/userfiles/files/mejizumunepavijebu.pdfIn PDF document text
  • https://hopadive.cz/ckfinder/userfiles/files/15770061587.pdfIn PDF document text
  • https://burstallconrad.com/editor_files/file/69539955748.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/0d16d9c88e58add6a777ed43baa5be04/44760515151.pdfIn PDF document text
  • https://telechips.com/ckfinder/userfiles/files/jisufowexuputamavitomat.pdfIn PDF document text
  • https://zenmobile.in/jaipriyart/uploads/files/rubuxigolijibobaravijite.pdfIn PDF document text
  • https://brillimet.com/uploads/files/202109071027316751.pdfIn PDF document text
  • https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/363921581.pdfIn PDF document text
  • http://www.ocptecnology.com/admin/uploaded/fck/file/34022229208.pdfIn PDF document text
  • http://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/82592118563.pdfIn PDF document text
  • https://meesens.be/KrMee/Tekstverwerker/83066854064.pdfIn PDF document text
  • https://mrdak.cc/uploadfile/files/49156062902.pdfIn PDF document text
  • http://miroslaws.com/ckfinder/userfiles/files/gekefizosamedevusud.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161312e17a856a---89905232153.pdfIn PDF document text
  • https://pemaboutiquehotel.com/assets/userfiles/files/43276776815.pdfIn PDF document text
  • http://agriturismolataggiasca.eu/userfiles/files/31392929367.pdfIn PDF document text
  • http://e3edu.vn/public/ckfinder/core/connector/php/connector.phppublic/uploadsfiles/kopawaveletesarotavesa.pdfIn PDF document text
  • http://goodlife88.com/uploads/files/nojazemopulibotixijim.pdfIn PDF document text
  • http://shriadinathbank.com/uploads/gikipowetal.pdfIn PDF document text
  • http://hamzalegalservices.com/userfiles/file/dodetiti.pdfIn PDF document text
  • http://tprcindia.com/ckeditor/ckfinder/userfiles/files/pakokorowo.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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