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://medvor.ru/uplcv?utm_term=shareit+pro+apk+latest+version PDF link annotation

  • https://safe-international.com/userfiles/file/18072944539.pdfIn PDF document text
  • https://all-stage-meditation.tw/uploads/files/61424fdbaee6a.pdfIn PDF document text
  • http://www.singchai.co.th/ckfinder/userfiles/files/60278015126.pdfIn PDF document text
  • http://dietmoiquangle.com/webroot/img/files/64509909530.pdfIn PDF document text
  • https://intrastorg.com/userfiles/file/4302365600.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/ef958801849a7e9dc8838bfa332dfe95/51301269823.pdfIn PDF document text
  • https://chorland-dining.com/webroot/editor-uploads/files/32969041888.pdfIn PDF document text
  • https://benmoonpharma.com/userfiles/file/54847090355.pdfIn PDF document text
  • https://aydin-elektrik.com/resimler/files/25075237361.pdfIn PDF document text
  • https://vinacomvietnam.vn/uploads/news_file/zukijujakulesawarikudesup.pdfIn PDF document text
  • https://by-express.com/upfiles/editor/files/wadotefulunaf.pdfIn PDF document text
  • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/3ffbb791d401515adcb84726d2cb029e/84666674997.pdfIn PDF document text
  • https://saigonservices.vn/images/uploads/files/22487070144.pdfIn PDF document text
  • http://coimbra.hu/uploads/ckfinder/userfiles/files/weguwojexekirajap.pdfIn PDF document text
  • http://fabriquetextil.com/js/new/fckeditor/userfiles/file/wifufinuzofat.pdfIn PDF document text
  • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161390eff767a5---17921035402.pdfIn PDF document text
  • http://siltherm.com/ckfinder/userfiles/files/vanuritalowobil.pdfIn PDF document text
  • http://runhouchem.com/upload/files/vutifasurelidogazewiradi.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6700ac407---razuta.pdfIn PDF document text
  • https://egyptsuntours.com/userfiles/files/foruxuzilu.pdfIn PDF document text
  • http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/tilutub.pdfIn PDF document text
  • https://korvioinfotech.com/ckfinder/userfiles/files/56150525958.pdfIn PDF document text
  • https://imahima.xyz/js/ckfinder/userfiles/files/98943573834.pdfIn PDF document text
  • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/77432922561.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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