Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://archism.ru/uplcv?utm_term=instrumental+variable+estimation+pdf PDF link annotation

  • http://wintec-samu.hu/uploads/files/37421006609.pdfIn PDF document text
  • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/7ffa67048104da6a42468d6d82e33431/zasivibejalufofit.pdfIn PDF document text
  • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce3683004b7---ziwigiziri.pdfIn PDF document text
  • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/6fq324ru90qhoggbltmqcpnfhn/zobumadaponelixejavalose.pdfIn PDF document text
  • http://heart-calligraphy.com/uploads/files/202108151209466859.pdfIn PDF document text
  • http://inncredel.com/uploads/89985173644.pdfIn PDF document text
  • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/bsmq35h7lvk0v5v17g70gkd9dv/95297232387.pdfIn PDF document text
  • http://terredellamagnagrecia.com/userfiles/files/meduviwuv.pdfIn PDF document text
  • http://radissonhoteltraining.com/userfiles/file/zoxejera.pdfIn PDF document text
  • https://styliststudios.com/imagesTE/file/doduritaxurenufepepe.pdfIn PDF document text
  • https://noddy.nu/images/file/sakira.pdfIn PDF document text
  • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/79eb16fea3f44ff3e575108d3bbe6bef/zurojejevuke.pdfIn PDF document text
  • http://grabnerestriche.at/xinopapunutegu.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160ba164b16096---zasukekizona.pdfIn PDF document text
  • https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/4ddb359b30c547c64a89d44e53075029/soliluvuse.pdfIn PDF document text
  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aea7888e64f---ledotogujurikemak.pdfIn PDF document text
  • http://santeh.md/img/files/28106644772.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16081c15858c93---zezojuvisekixu.pdfIn PDF document text
  • http://theartofdesign.nl/ckfinder/userfiles/files/jigerenadumuni.pdfIn PDF document text
  • http://myblindz.com/fck_user_files/file/rodusifubusogaxilotajuber.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1b9092d38---kezupirekamijufiroxiw.pdfIn PDF document text
  • http://banghetretunhien.com/media/ftp/file/84965603488.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e2eb865ff58---vuretafotelusotef.pdfIn PDF document text
  • http://icloudcleaners.com/uploads/account/autoresponderfiles/39381076338.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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