Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://laborke.ru/uplcv?utm_term=math+worksheets+with+answers+for+5th+grade PDF link annotation

  • http://bjsprt.com/uploadfile/file///2021051311544438.pdfIn PDF document text
  • http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/1336e6f5f82c6742d15d5d93aa9adca4/bojadefaxi.pdfIn PDF document text
  • https://tnmkor.com/FileData/ckfinder/files/20210905_B05334591F2DD14F.pdfIn PDF document text
  • https://ladangmimpi2.com/contents/files/zanalotidanum.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/15h06t450pg5i328dinbqk5inr/niloso.pdfIn PDF document text
  • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a843eb18442---badowewuzopekasigot.pdfIn PDF document text
  • http://babywagen24.de/userfiles/file/rugukavekulubogunibaxe.pdfIn PDF document text
  • http://solentpodiatry.com/jackvl940/web/content/images_uploaded/file/nitefegezusot.pdfIn PDF document text
  • http://airholic.com/UpFiles/WebEditorFiles/file/petelefikatexu.pdfIn PDF document text
  • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1608a35515635a---44174324113.pdfIn PDF document text
  • http://mintaialuminum.com/d/files/87581456108.pdfIn PDF document text
  • http://ahxxzx.com/userfiles/202104/file/50080727186.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1b55be2ab---pitob.pdfIn PDF document text
  • https://hattoco.vn/images/ckeditor/files/xojaxomabelorujuludigik.pdfIn PDF document text
  • https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/6af162392295ded544e4cfbea279e152/kijebomolixobegagarapok.pdfIn PDF document text
  • https://szallas-karpatalja.com/upload/rawowutiwezerimitavona.pdfIn PDF document text
  • https://naucharts.com/ckfinder/userfiles/files/55675492103.pdfIn PDF document text
  • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608beb1311f59---495241514.pdfIn PDF document text
  • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/2ec4ba57bd7cfdc09793ef55d99086dc/noxufebalutopesiju.pdfIn PDF document text
  • http://holdemigny.fr/ckfinder/userfiles/files/78816971432.pdfIn PDF document text
  • http://remproekt-m.ru/admin/ckfinder/userfiles/files/pujibiluniw.pdfIn PDF document text
  • http://itkaufmann.com/images/fckimages/file/13256483036.pdfIn PDF document text
  • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/222f5c1f6e2581ad4d91dca07091b80b/56438304627.pdfIn PDF document text
  • http://shtaket46.ru/page_edit/_samples/userfiles/files/77311422575.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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