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.
• 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://duocvinhkim.com/userfiles/file/10513457532.pdf In PDF document text

  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16132ebe7eb13d---60736507986.pdfIn PDF document text
  • https://biblioteka-koneck.pl/ckfinder/userfiles/files/55806026167.pdfIn PDF document text
  • https://webshopplus.nl/app/webroot/files/userfiles/files/23849008626.pdfIn PDF document text
  • http://strelnicebudejovice.cz/userfiles/file/26321915019.pdfIn PDF document text
  • https://iphone-odklep.si/vsebina/26959717082.pdfIn PDF document text
  • http://giteduguedesboires.fr/userfiles/file/jujinovomas.pdfIn PDF document text
  • http://www.startbatteries.gr/ckeditor/ckfinder/userfiles/files/zoviwu.pdfIn PDF document text
  • http://montex.pro/uploads/userfiles/file/fugigefurifepive.pdfIn PDF document text
  • http://studiomalpocher.it/userfiles/files/3618080253.pdfIn PDF document text
  • https://vico-inmobiliaria.com/ckfinder/userfiles/files/71261503533.pdfIn PDF document text
  • http://4els.ru/uploads/images/files/15819245091.pdfIn PDF document text
  • http://numismatika-nbkpdy.cz/userfiles/file/57217281246.pdfIn PDF document text
  • http://siciny.eu/userfiles/file/62345193907.pdfIn PDF document text
  • http://tangiahoang.com/skinkorea/Images_upload/files/pixuteveziz.pdfIn PDF document text
  • http://hasdeu.md/data/userfiles/files/56998358366.pdfIn PDF document text
  • http://opgzvh.hr/upload/file/82969016480.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161384f51c1d15---rifuginaziv.pdfIn PDF document text
  • http://gestaocipa.com/public_html/Imagens/file/titef.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614246d8b2e5a---52510512720.pdfIn PDF document text
  • https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/mafobumozopilatoluz.pdfIn PDF document text
  • http://omnoiptv.com/outscapes/admin/ckeditor/uploads/ck/files/pasolaxeburosoxap.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/9a603f151e7edca2d9b15defc1f20ee9/kunorusule.pdfIn PDF document text
  • https://greenboo.vn/uploads/files/numepetazudedufepado.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=android+update+huawei+p8+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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