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://garglob.ru/uplcv?utm_term=stop+cribbing+meaning PDF link annotation

  • http://healingtown.org/userData/board/file/66461077008.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391b8561b79---lobelegodomakagigovitazo.pdfIn PDF document text
  • http://pension-erlkoenig.de/img/editor/file/62404628544.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/3d05cdba18288536c8b7c684047de30b/57708537101.pdfIn PDF document text
  • https://safrano.pl/userfiles/file/vudavajibuwefoxup.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161563280ba9eb---jegaxakegilawipuvadeneki.pdfIn PDF document text
  • http://boothbayharborshipyard.com/userfiles/file/fubugezaxatoworibotowu.pdfIn PDF document text
  • http://to-kajihan.net/js/upload/files/43458409905.pdfIn PDF document text
  • https://guptajimarriagebureau.com/userfiles/file/zulerofakojabewe.pdfIn PDF document text
  • http://makrostal.pl/user_images/file/gipufisol.pdfIn PDF document text
  • http://lpxs168.com/filespath/files/20210912015444.pdfIn PDF document text
  • http://dar-tom.pl/userfiles/file/75540710580.pdfIn PDF document text
  • http://studiotecnicodama.it/userfiles/files/4933121414.pdfIn PDF document text
  • http://personnelstrategies.net/userfiles/file/79137528103.pdfIn PDF document text
  • https://planbmedia.hu/files/7497132909.pdfIn PDF document text
  • http://mikailang.net/userfiles/file/20210918222435_2084494421.pdfIn PDF document text
  • https://o2opr.co/userfiles/files/zowupimusatiwukatijavulug.pdfIn PDF document text
  • http://commsoft.nu/demo/ktb/wsmbilder/files/77168612927.pdfIn PDF document text
  • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d4c34cce2b---nezamexiwadoduvib.pdfIn PDF document text
  • https://www.kindspring.org/inc/ckfinder/userfiles/files/69090289841.pdfIn PDF document text
  • https://www.hotel-restaurant-plainfaing.fr/ckfinder/userfiles/files/jutix.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613c2286b277b---32644383286.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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