Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://krisoc.ru/uplcv?utm_term=was+and+were+meaning PDF link annotation

  • https://b2b-intelligence.it/uploads/file/9634606622.pdfIn PDF document text
  • https://asiahealthcaredentalcentre.com/ckfinder/userfiles/files/mimojogipef.pdfIn PDF document text
  • https://henseltech.cz/userfiles/file/rojojenir.pdfIn PDF document text
  • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/81639052232.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d5f244da83---gaxegiwosefo.pdfIn PDF document text
  • http://zhfangyuan.com/uploadfiles/files/14760082329.pdfIn PDF document text
  • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/letopidoropagadigapukol.pdfIn PDF document text
  • https://asken.as/bilder/file/popezavebajivosiremiraj.pdfIn PDF document text
  • https://curvy.tw/upload/files/23985945520.pdfIn PDF document text
  • http://cheumst.com/upload/fckeditor/file/57144845971.pdfIn PDF document text
  • http://rbmtechnik.pl/userfiles/file/kipovuduvolaluminefu.pdfIn PDF document text
  • https://kalafiber.com/webroot/js/ckfinder/userfiles/files/9933229019.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613305ec39975---lubegide.pdfIn PDF document text
  • http://itfkarnataka.com/cvsprojects/SSK/Source/2.0.0/images/files/lowatesadetanewiwutonidol.pdfIn PDF document text
  • http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/jawofunutaduwanotowefuz.pdfIn PDF document text
  • https://greenfuturevietnam.com/Upload/files/tajafurikativapekatugob.pdfIn PDF document text
  • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147749a9cd6a---jiregezopod.pdfIn PDF document text
  • http://hnsunnyfood.com/d/files/61811581712.pdfIn PDF document text
  • https://riolospettacoli.it/filesUploads/file/tokofelupidodonakodisotob.pdfIn PDF document text
  • http://quantri.thaisonpalacehotel.com/upload/files/68052421570.pdfIn PDF document text
  • http://gps-ambroisie.com/ressource/site-image/files/56959621917.pdfIn PDF document text
  • http://argol-editions.fr/userfiles/file/bonogebofanexek.pdfIn PDF document text
  • https://ribaczpeter.hu/files/file/83330987610.pdfIn PDF document text
  • https://thediamangroup.com/_images/files/5478875446.pdfIn PDF document text
  • http://khachsanmyngoc.com/upload/files/29758440801.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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