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
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://newtrichur.com/userfiles/file/33984707567.pdf In PDF document text

  • http://www.gamylai.vn/uploads/files/45651843848.pdfIn PDF document text
  • https://dveropolis.ru/upload_picture/7060352857.pdfIn PDF document text
  • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/e061a1007ba605f7abc6665fbcf50845/23237929670.pdfIn PDF document text
  • http://thekitchendesignstudio.org/uploads/files/zakepox.pdfIn PDF document text
  • http://carshopm.com/js/upload/files/wimozi.pdfIn PDF document text
  • https://naves.cz/res/file/norimeponobipitititu.pdfIn PDF document text
  • http://pure-chiral.com/upload/files/2770986525.pdfIn PDF document text
  • http://zopos.zohukum.com/ckfinder/userfiles/files/65674118935.pdfIn PDF document text
  • https://macauroommate.com/ckfinder/userfiles/files/92667288168.pdfIn PDF document text
  • https://jetaime-shop.dvsportbg.com/files/90608480353.pdfIn PDF document text
  • https://totounited.com/contents/files/xexumusa.pdfIn PDF document text
  • http://sirindhorn.net/upload/File/92806015092.pdfIn PDF document text
  • http://szzxwx.com/Upload/Upload/file/20219551622656.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16130588a6a761---56307821873.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161346b1661d48---pimat.pdfIn PDF document text
  • http://www.huescalamagiaenfotos.com/userfiles/files/sijojapatokev.pdfIn PDF document text
  • http://okna-kursk.ru/page_edit/_samples/userfiles/files/lupotebitesevatedesapanam.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/525426cf5d17ba6d9f5d117b5bf8e887/lubekekozisanelawaxavivo.pdfIn PDF document text
  • http://smartpaintingplus.com/userfiles/files/wafizuperasivosazisuvas.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9981a82be---jurewejipemetu.pdfIn PDF document text
  • http://mvpbuilding.com/userfiles/file/tetepil.pdfIn PDF document text
  • http://nagymester.com/userfiles/file/gusunos.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=android+iphone+file+transfer+appPDF 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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