Malicious PDF — malware analysis report

Heuristics 9

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://skonasystems.com/userfiles/file/75305414026.pdf In PDF document text

  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b928f66010---guxosagufuxitozejo.pdfIn PDF document text
  • http://cokhihoangvinh.com/uploads/userfiles/file/kupexujasipiwajuberekozej.pdfIn PDF document text
  • http://reelproductionshd.com/userfiles/file/66753386889.pdfIn PDF document text
  • http://studiosantese.eu/userfiles/files/puxenogiguje.pdfIn PDF document text
  • http://veraschwemmle.de/fckdata/file/33334249753.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/u4cgmoi6ofvekj3m4ko6vm1fq0/wixokenupumewimiwim.pdfIn PDF document text
  • http://futsalcb.cz/picture/vtextu/file/zedukixalaxirijezaxutowom.pdfIn PDF document text
  • https://www.alitec.es/js/ckfinder/userfiles/files/gimovolomitikumu.pdfIn PDF document text
  • http://exito-opakowania.pl/userfiles/file/54060202166.pdfIn PDF document text
  • http://popmetre.com/news/files/muzejuxekafukele.pdfIn PDF document text
  • http://newshop.jp/archive/file/78301254133.pdfIn PDF document text
  • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/e301bacce46dc0761e5c71c72cfc98b5/79086353900.pdfIn PDF document text
  • https://maisonforville.be/documents/file/37857669082.pdfIn PDF document text
  • http://seattleteriyaki3.com/uploads/files/8120536328.pdfIn PDF document text
  • https://www.hsbofmn.com/ckfinder/userfiles/files/99514600693.pdfIn PDF document text
  • https://takipbizde.com/calisma2/files/uploads/15250215877.pdfIn PDF document text
  • https://surupaceanu.ro/ckfinder/userfiles/files/27655180324.pdfIn PDF document text
  • https://viettrungson.com/media/Files/tekumudabo.pdfIn PDF document text
  • https://piphoto.tw/uploads/files/202109021854519350.pdfIn PDF document text
  • http://www.julietlandau.com/fckeditor/userfiles/file/88625862513.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613ceceae85e2---60887004577.pdfIn PDF document text
  • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/161415425e9c80---fujaza.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=hentai+porn+games+freePDF 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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