Malicious PDF — malware analysis report

Heuristics 8

• 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
• 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 http://stellar.ru/ckfinder/userfiles/files/kosune.pdf In PDF document text

  • http://fu-xin.tw/uploads/files/202109130807184514.pdfIn PDF document text
  • http://newcityhk.com/userfiles/vojikuzumejoriruropuguvi.pdfIn PDF document text
  • https://ashleymongolia.mn/uploads/files/zuwam.pdfIn PDF document text
  • http://www.sospapa24.com/lib/ckfinder/imgupload/files/xexutodukazexusafu.pdfIn PDF document text
  • http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/vekadozisil.pdfIn PDF document text
  • http://yasairamenbar.com/uploads/files/nesudobupa.pdfIn PDF document text
  • http://bajkolandia-leszno.pl/userfiles/file/fifimoxipojuremoleb.pdfIn PDF document text
  • http://bdpq.hungminhits.com/files/uploaded/files/nukuvoribajogawido.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/dusujepewas.pdfIn PDF document text
  • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/218821893730307a7dc4709d51df7042/wosajine.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad29b86a1c---tuponudorafepeg.pdfIn PDF document text
  • http://drigungkagyurinchenpalbarling.org/upload/userfiles/files/41376840042.pdfIn PDF document text
  • http://futuralagoparking.eu/userfiles/files/misakujoremerufesof.pdfIn PDF document text
  • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/sevalixojakutex.pdfIn PDF document text
  • http://scamps.biz/userfiles/file/85780652665.pdfIn PDF document text
  • http://sbsinternationalschool.org/userfiles/file/xozegojudoxafegubepivi.pdfIn PDF document text
  • http://eot.mn/uploads/userfiles/files/43257668240.pdfIn PDF document text
  • https://pastijptoto.com/contents/files/xiguxodakilazo.pdfIn PDF document text
  • https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/desaxifizuvinufunekuxudod.pdfIn PDF document text
  • http://bjavc.com/filespath/files/20210916032852.pdfIn PDF document text
  • http://www.ufolep-69.com/contenus/files/90293013187.pdfIn PDF document text
  • https://pielinks.com/UserFiles/file/gagufakewi.pdfIn PDF document text
  • http://www.aaar.cat/assets/js/ckfinder/userfiles/files/daxegepelorobadavewobabi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=new+version+of+vidmate+appPDF link annotation
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8267cbad4---12276350585.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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