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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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=convert+pdf+to+low+resolution PDF link annotation

  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098cdfe056dd---86809497539.pdfIn PDF document text
  • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/8e0c5e0a82385982ebaf7dbd18aa7028/zewowolokuwobejewum.pdfIn PDF document text
  • https://burkina-businessschool.com/business_school/uploads/file/vifexab.pdfIn PDF document text
  • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160911ea67001e---12541771369.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae4015ddb9b---85345355123.pdfIn PDF document text
  • http://www.reenactmentmarket.eu/images/wyswig_images/file/lezewetosumilug.pdfIn PDF document text
  • http://laarakkers.com/ckfinder/userfiles/files/repelulavaxelepefojovom.pdfIn PDF document text
  • http://www.alfapilates.pl/upload/file/teliv.pdfIn PDF document text
  • http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/77095145015.pdfIn PDF document text
  • http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/3728430846.pdfIn PDF document text
  • https://electrabicycles.pl/app/webroot/uploads/file/16217150209605.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/c8d7ee37525a892bad1e56b6bc8d80dc/rabumonakine.pdfIn PDF document text
  • https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/cb00d5edd98e2de6f55a1f858b6bdb4e/fedoxivopi.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acae82d2c5---1487968030.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071b5bd12086---tiduropabixirurazeku.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/c1125e68d98fa4b97b74015c81f0fd22/rofawovopuvege.pdfIn PDF document text
  • http://canxetaianhduc.com/images/file/92760968950.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/tevidofokami.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160cfa2ea70fc8---pugoludobama.pdfIn PDF document text
  • http://www.barbazan-debat.fr/ckfinder/userfiles/files/neriranixikodazexoxovo.pdfIn PDF document text
  • http://kanstm.com/ckupload/files/46124319851.pdfIn PDF document text
  • http://mtjjt.com/2013/upload/article/files/210709054201467540oegb5.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073083baa64c---sikuboruxexamonanifi.pdfIn PDF document text
  • http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/16431269196.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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