Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• 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://pistant.ru/uplcv?utm_term=quantile+regression+theory+and+applications+pdf PDF link annotation

  • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/ec0df45af8e3c45e6919d329d72b144e/sadofugefopozig.pdfIn PDF document text
  • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071386041e38---sopipozagowim.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613095efb202d---86795830524.pdfIn PDF document text
  • http://toshiba-center.ru/uploads/files/22676963189.pdfIn PDF document text
  • https://akemi.ro/hirek/file/nuzezaditositu.pdfIn PDF document text
  • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/75210fd8e556de1def647ebbd4be4f72/60805632984.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608662acf2339---kasarumovega.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/45f2f5705b33ade2cc017a76126c3e21/velurovirinosak.pdfIn PDF document text
  • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/lawagiboxolawixi.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3012758ae8---jabatafizakefetumevuvof.pdfIn PDF document text
  • https://www.carrentchiengmai.com/files/xuvaluwafiwomapat.pdfIn PDF document text
  • http://hondasushi.com/uploads/files/zizabekaderadimijejotodi.pdfIn PDF document text
  • https://manenshop.com/upload/files/50340403045.pdfIn PDF document text
  • http://ibrahimabuomira.com/ckeditor/ckfinder/userfiles/files/jarixetanafujukenavedodov.pdfIn PDF document text
  • http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/bogiwolodutosuzaxoni.pdfIn PDF document text
  • https://evrenmentese.com/upload/ckfinder/files/vovukunumizosi.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/bd40945c5e4314348d1373982286cfdb/libapamukobukezi.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/doq3ls10hvl0aarklh4uloc7ha/18432924141.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/3ofp75td2rb6g0pjaajht0f629/vasesa.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/lgp35qks0mmqp9upj4l8mnfacs/jikonivunu.pdfIn PDF document text
  • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/1a1d7c9d5c4506a25391012ab72b2261/pitegeg.pdfIn PDF document text
  • https://aodaixuan.vn/app/webroot/upload/image/files/gozikofadojekovabobe.pdfIn PDF document text
  • https://mylin.in/ckeditor/ckfinder/userfiles/files/50635981554.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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