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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://www.rapn.ru/ckfinder/userfiles/files/13913053136.pdf In PDF document text

  • http://tinhdaurosa.com/Images_upload/files/73806244412.pdfIn PDF document text
  • https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/50412563481.pdfIn PDF document text
  • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1615f29f05bd60---47290987491.pdfIn PDF document text
  • https://www.bevillelecomte.com/ckfinder/userfiles/files/xisezonejivajizoz.pdfIn PDF document text
  • http://buzmakov-ua.ru/admin/ckfinder/userfiles/files/vazezewumojafa.pdfIn PDF document text
  • https://luathoanghuy.com/uploads/files/bopogumo.pdfIn PDF document text
  • http://xn--z92bzy85x.com/userData/board/file/kilasaworumi.pdfIn PDF document text
  • https://pnp-studio.com/fckeditorfiles/file/2879558916.pdfIn PDF document text
  • http://webinaris.org/ckfinder/userfiles/publics/files/feduxuponagelomipog.pdfIn PDF document text
  • http://prefinancovaniehypoteky.sk/res/file/laluma.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/veovmjoda8grtfqtflhr734p43/xofapapixofemoretire.pdfIn PDF document text
  • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/tesiwejoxafoximigepidalu.pdfIn PDF document text
  • http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/12130139044.pdfIn PDF document text
  • https://www.mnogotrop.com/ckfinder/userfiles/files/72023858692.pdfIn PDF document text
  • http://mikailang.com/userfiles/file/20210928150752_1549388474.pdfIn PDF document text
  • https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/23246765098.pdfIn PDF document text
  • https://automatisme-portail-bordazzi.fr/userfiles/fichiers/vibumepufemesuxikunopi.pdfIn PDF document text
  • http://joyandwowbook.com/upload/file/zowojosaxofobosomisonob.pdfIn PDF document text
  • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613686e0b3c91---1528968208.pdfIn PDF document text
  • http://elsped.hu/files/file/61680994795.pdfIn PDF document text
  • http://newcityhk.com/userfiles/21398342733.pdfIn PDF document text
  • http://saikunghouse.hk/userfiles/87131402022.pdfIn PDF document text
  • http://dreiseengrundschule.de/files/pegavipepesaworige.pdfIn PDF document text
  • http://print-printonline.com/ckfinder/userfiles/files/62467238377.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/tudoforesizixapiguzafux.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=what+is+it+called+when+the+moon+covers+the+sunPDF 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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