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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• 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://siliconautomation.com/userfiles/file/41960122771.pdf In PDF document text

  • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1614160e0a33fc---19946872043.pdfIn PDF document text
  • https://charterboatdeliverance.com/uploads/files/87515226773.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1613e50bd9a33d---14851967485.pdfIn PDF document text
  • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/31436173000.pdfIn PDF document text
  • http://lasfyy.com/uploadfile/file/20210913204649115.pdfIn PDF document text
  • http://vuatoyen.com/uploads/userfiles/file/botufifiribax.pdfIn PDF document text
  • http://ty6600.com/userfiles/file/30263814053.pdfIn PDF document text
  • https://pasarantogel2.com/contents/files/regug.pdfIn PDF document text
  • https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/bdadb7d916e1529b6fbbfa9c01912212/xafexagivisubiju.pdfIn PDF document text
  • https://albertoangel.sinecsas.com/ckfinder/userfiles/files/betatuvuxira.pdfIn PDF document text
  • http://jar-ted.pl/file/pubejazowilegoli.pdfIn PDF document text
  • http://iviltra.lt/images/files/61088958303.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/cc9792d4d8761c61a91d97fda0c30934/wefujobesom.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132bb5665844---3991240379.pdfIn PDF document text
  • https://confetti-seasons.ru/upload/files/zijelikuxoja.pdfIn PDF document text
  • http://ephtour.com/FileData/ckfinder/files/20210913_C7DC89F577BB7DC4.pdfIn PDF document text
  • http://wimborst-ceramics.nl/public/view/upload/fckeditor_images/file/kipob.pdfIn PDF document text
  • https://eledigitalpr.it/allegati/file/tawugimotakexobitato.pdfIn PDF document text
  • http://sibmaxi.ru/userfiles/file/41620800945.pdfIn PDF document text
  • http://candemdientu.com/Images_upload/files/1830639873.pdfIn PDF document text
  • http://chanhbon.vn/media/ftp/file/48512374241.pdfIn PDF document text
  • http://strandedtattoo.net/file/mutowire.pdfIn PDF document text
  • http://coconut.hu/userfiles/file/88387630799.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=super+vpn+vip+apkPDF link annotation
  • http://www.cst.rnu.tn/js/ckfinder/userfiles/files/mimori.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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