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
• 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://catamma.ru/uplcv?utm_term=logarithmic+equations+maze+pdf PDF link annotation

  • http://www.celso.org/download/62575561620.pdfIn PDF document text
  • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab95bf0e19f---93092759495.pdfIn PDF document text
  • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/37c4f121cce5c32b0ef094d1f28a1b4d/bomug.pdfIn PDF document text
  • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16080afff1d436---25319285855.pdfIn PDF document text
  • http://imhyuk.com/imhyukeditor/userfile/file/vexedejinopifam.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607435aed8d42---39949268520.pdfIn PDF document text
  • http://asbufestival.com/uploads/FCK_files/file/jupurotakukin.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077974b88043---malasob.pdfIn PDF document text
  • http://terwaarde.be/ckfinder/userfiles/files/69790128939.pdfIn PDF document text
  • http://rioairporttransfer.com/ckfinder/userfiles/files/gagatutafogap.pdfIn PDF document text
  • http://suchanekstomatolog.pl/files/file/raripek.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/kabvo8bkrgbtrpolciudpr5vo2/49276707183.pdfIn PDF document text
  • https://betibg.eu/webroot/img/files/51850241192.pdfIn PDF document text
  • http://paroissedementon.fr/upload/files/kaxatarege.pdfIn PDF document text
  • http://bisenzia.it/userfiles/files/74913941050.pdfIn PDF document text
  • https://paradigma.bg/uf/file/75094584503.pdfIn PDF document text
  • https://avela.md/userfiles/file/makor.pdfIn PDF document text
  • http://daisin1977.com/js/upload/files/76208452790.pdfIn PDF document text
  • http://www.alex-vasilkov.ru/images/wisdom/file/75243425987.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b2c9ed1db84---renisuzaselavizosijifile.pdfIn PDF document text
  • https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/42456395017.pdfIn PDF document text
  • http://www.mezmat.ru/ckfinder/userfiles/files/lujilumenip.pdfIn PDF document text
  • https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/b1e9184650adbf4b30860d44c1e7ab59/18727024245.pdfIn PDF document text
  • https://bodegoncriollo.com/userfiles/file/18015114132.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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