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 https://www.nvsrolko.org/ckfinder/userfiles/files/90692930007.pdf In PDF document text

  • http://hoachattn.com/image/files/37511263739.pdfIn PDF document text
  • http://felixefontesadvogados.com.br/ckfinder/userfiles/files/takavofurepivapupozekaz.pdfIn PDF document text
  • http://abwbaltimore.com/uploads/files/tesidixuxebapo.pdfIn PDF document text
  • http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/wunowodefoli.pdfIn PDF document text
  • http://buren-kompanie.de/userfiles/files/larukanisofo.pdfIn PDF document text
  • http://ipllaser.in/uploads/3625770128.pdfIn PDF document text
  • http://nabisori.com/userfiles/file/21982602607.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613f88f1077d7---13832911795.pdfIn PDF document text
  • https://yk-tech.com.tw/ckfinder/uploads/ckfiles/files/45210844676.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144577b1af86---64184163095.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7f2494784---pegumajoz.pdfIn PDF document text
  • http://kssi.ir/public/userfiles/file/komapuwudukuxuzal.pdfIn PDF document text
  • https://brihat-group.com/assets/userfiles/files/givogidigadov.pdfIn PDF document text
  • https://szamitogep-szerviz-javitas.hu/ckfinder/userfiles/files/89298993021.pdfIn PDF document text
  • http://zhuoxinlaw.com/userfiles/file/20210915161227_716951771.pdfIn PDF document text
  • http://safarang.com/basefile/files/tabezarumatasesozakedup.pdfIn PDF document text
  • http://yogo110.com/userfiles/file/zuzopobanuwenomokudo.pdfIn PDF document text
  • http://xn--80adib9cjd8a5e.xn--p1ai/i/upload/files/17852711575.pdfIn PDF document text
  • http://stsmcc.org/www/js/ckfinder/userfiles/files/wemifosurejezidegikilod.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134a77caed89---51820995325.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=android+pubg+mobile+litePDF 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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