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
• 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 https://inwebjor.ru/uplcv?utm_term=root+switch+tv+box PDF link annotation

  • https://btsis.com/upload/ckfinder/files/87215433392.pdfIn PDF document text
  • http://slstudio.it/userfiles/files/54140249638.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613109e5338b1---kovat.pdfIn PDF document text
  • http://lnv-cnc.com/userfiles/file/62214000951.pdfIn PDF document text
  • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/20d5263b81ff71ca3b4ba21260ba93d4/63324786129.pdfIn PDF document text
  • https://giolog.biz/images/bulk_images/files/jaxelixofepazari.pdfIn PDF document text
  • http://mulroyenvironmental.ie/userfiles/file/vedobikilolujox.pdfIn PDF document text
  • http://www.predia.cz/userfiles/file/36710995615.pdfIn PDF document text
  • http://kramnyca.info/img/upload/editor/file/12922611555.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/161316fb86b8d9---82785995633.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613487a08d14a---lobedasutufaribudujibuw.pdfIn PDF document text
  • http://joyear.com/ckfinder/userfiles/files/17235236487.pdfIn PDF document text
  • https://jensbrode.de/files/file/mewubor.pdfIn PDF document text
  • http://universalthailand.com/images/uploads/ckfinder/files/73420361276.pdfIn PDF document text
  • https://jackyrouxmethode.com/userfiles/file/29352741752.pdfIn PDF document text
  • http://studiotecniconuti.it/userfiles/files/90487895993.pdfIn PDF document text
  • http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/zukajibuderejuduwizema.pdfIn PDF document text
  • http://sahcarpets.com/userfiles/file/nolanazupixo.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/9b6306630360533cdcbd62772fdb2f34/9338248925.pdfIn PDF document text
  • https://solelane.com/ckfinder/userfiles/files/36510047808.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613771d660c64---12529053674.pdfIn PDF document text
  • http://goref.ru/files/file/76840639042.pdfIn PDF document text
  • http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/11856714192.pdfIn PDF document text
  • https://prevodi-plovdiv.com/userfiles/file/betan.pdfIn PDF document text
  • http://castel.lu/userfiles/files/36101350277.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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