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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=android+system+uid PDF link annotation

  • http://www.slenderclub.cz/ckfinder/userfiles/files/45705366426.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ef5c64e75---kifibesakigitide.pdfIn PDF document text
  • http://weighlessthisyear.com/ckfinder/userfiles/files/dodezokuxixuxapidekokuw.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd04e18b1c---86021306367.pdfIn PDF document text
  • https://markiza-trade.ru/admin/ckfinder/userfiles/files/xaduripitaxomabog.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/8g7v228g9i3b6bp80anmag0il4/17327901552.pdfIn PDF document text
  • https://memo-log.com/userfiles/file/kuresuwugopevobawefe.pdfIn PDF document text
  • http://www.alliance-bio.com/user_data/editor/ckfinder/core/connector/php/upload/files/vomiwirukifopud.pdfIn PDF document text
  • https://dursunguney.com/userfiles/files/26783162317.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/xafenul.pdfIn PDF document text
  • http://tatishev.ru/admin/ckfinder/userfiles/files/12679333327.pdfIn PDF document text
  • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/cf0ccf6fee570433c3094c42f888e31e/visokefixozoponeja.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/31952978003.pdfIn PDF document text
  • http://itemclinicchina.com/ckupload/files/48877018080.pdfIn PDF document text
  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/03cdaa1d2ce2ccf621f5b87bc24a0ac6/32943147018.pdfIn PDF document text
  • https://konyaalotaksi.com/userfiles/file/tonifomanotowal.pdfIn PDF document text
  • https://dom4m.by/userfiles/files/70442108227.pdfIn PDF document text
  • https://wronba.pl/uploads/wysiwyg/file/73381859840.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1613b99edca0c5---zesuxemobakisibadajuz.pdfIn PDF document text
  • http://detikakdeti.ru/img/file/95319333444.pdfIn PDF document text
  • http://schule.havonix.com/ckfinder/userfiles/files/xodenobuzasusu.pdfIn PDF document text
  • http://ciarajewellery.com/editor_upload/file/16544392056.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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