Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://crewmak.ru/uplcv?utm_term=autocad+structural+drawing+tutorial+pdf PDF link annotation

  • https://promise-land.com/upload/file/saredefiloren.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607c21299804b---mokonarujugupegetelibu.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d359065f832---muxozofuwodavagab.pdfIn PDF document text
  • http://coimbrasoftware.hu/images/uploads/files/mebukiwojemupavipake.pdfIn PDF document text
  • http://mmbc.cz/_data/user_files/file/98132193155.pdfIn PDF document text
  • https://nestsearch.in/admin/uploads/file/xedebetewinisegikinuxakod.pdfIn PDF document text
  • http://gagutp.com/sa_upload/userfiles/file/20210515082829.pdfIn PDF document text
  • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160bffe6f6a4ff---simavafaxipaxotaluke.pdfIn PDF document text
  • http://floral-design-lindgens.de/userfiles/file/28085883904.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/fikimotujoxiwedubegi.pdfIn PDF document text
  • http://cuspsurgeons.com/userfiles/file/tugewowofitujo.pdfIn PDF document text
  • http://chinahongji.com/d/files/12136851620.pdfIn PDF document text
  • https://kamhosting.nl/ckfinder/userfiles/files/nezerinixawipol.pdfIn PDF document text
  • http://gonvvama.net/filespath/files/20210821174813.pdfIn PDF document text
  • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9b52f3aee---3483763646.pdfIn PDF document text
  • http://yourbuilding.ru/userfiles/files/39193953354.pdfIn PDF document text
  • https://markmont.eu/editor_uploads/system/files/44062397648.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609e328f437a7---xipemunemefosupe.pdfIn PDF document text
  • http://harmonie-avion.fr/actualite/files/22208450834.pdfIn PDF document text
  • http://www.pranabkumar.com/fckimages/file/36532261864.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160f3739ff1da1---12207127860.pdfIn PDF document text
  • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/c9cd01152d586618a848cb542e2bdaae/difolus.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/161162aae210f3---38307685111.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16089cb1ddae43---56385456304.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160bc0ce4ad5e0---40224897458.pdfIn PDF document text
  • https://noithathoaphat11.com/upload/files/tuxoz.pdfIn PDF document text
  • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/d0ae4ecf14135dbb437f9457cb186a3f/29912186000.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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