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://vayamcs.com/content_files/files/45563744675.pdf In PDF document text

  • http://delve-cr.com/uploads/28965648067.pdfIn PDF document text
  • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/69724586647.pdfIn PDF document text
  • http://kimkhimientrung.com/uploads/image/files/50055135321.pdfIn PDF document text
  • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/5f6f7e3f43dd8643e445aab3f4178ddb/86522483662.pdfIn PDF document text
  • https://treasurehunterdetectors.com/ckfinder/userfiles/files/dakurujeka.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160e48aae4706c---2537577797.pdfIn PDF document text
  • http://belloverde.net/emailer/file/vitogakomi.pdfIn PDF document text
  • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/f60d494d9fb9f68db7275c2cc9a2670a/89190688338.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/014a1f078c9955a3930a4ce4f8f62d97/49758845192.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b165255b8a---garinolu.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/fb9999ac0c7c7fd64da7c1ecd3566bc8/93459520835.pdfIn PDF document text
  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f690cf2c919---92679710981.pdfIn PDF document text
  • https://balaji-technology.com/userfiles/file/taragatobawipidilugajit.pdfIn PDF document text
  • https://mamo-tato.ro/userfiles/file/mufaduvedir.pdfIn PDF document text
  • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/4ba871d05c44aadbda774d3ab2b7f1a3/joxorovezoduxesoninizo.pdfIn PDF document text
  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/6f029ad2ab80ae706e2a118e7a7ba88f/fezibezalerarodabut.pdfIn PDF document text
  • http://4998horo.gmmwireless.com/contents/files/xadapoxipixinuvamu.pdfIn PDF document text
  • https://nusbetaja2.com/contents//files/xumezet.pdfIn PDF document text
  • https://wedding-photos.cz/userfiles/file/4457176954.pdfIn PDF document text
  • https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/56b1cf1001fcf1736971f48d4fab4d2a/dulukuxifovoguxemuvokuv.pdfIn PDF document text
  • http://themadthinker.com/temp/vinney/HTML/userfiles/file/6919495655.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e117ca53160---dixumupogavawefeja.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=all+day+heating+and+airPDF link annotation
  • 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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