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.
• 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.
• 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://pistant.ru/uplcv?utm_term=resident+evil+4+android+obb PDF link annotation

  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/ed78adb2a85cd9387e7819bbd81f8383/84486708000.pdfIn PDF document text
  • http://suspensionestg.mx/userfiles/file/luzifutejevofujajojizib.pdfIn PDF document text
  • http://anchor-m.com/js/upload/files/70221889833.pdfIn PDF document text
  • http://fredericjean.net/oplusco/file/fivexoputopisikazewur.pdfIn PDF document text
  • https://hanurichurch.org/ckfinder/userfiles/files/57602527627.pdfIn PDF document text
  • http://capthepcongtrinh.com/uploads/news/files/29356254442.pdfIn PDF document text
  • http://hexindechem.com/upload/files/15991037915.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16136da668deae---44117248288.pdfIn PDF document text
  • https://artasedanasingaraja.com/uploadfck/file/82311899822.pdfIn PDF document text
  • http://soft-pro.hr/upload/datoteke/19065281314.pdfIn PDF document text
  • http://cancunday.com/travela/img/files/40300235948.pdfIn PDF document text
  • http://cpk.by/ckfinder/userfiles/files/52540854815.pdfIn PDF document text
  • http://synphabase.ch/upload/file/vasubonejogif.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/340ca87f95c11b85431713a13f95a2ec/6155409568.pdfIn PDF document text
  • http://open.ua/uploads/ckeditor/files/15876814879.pdfIn PDF document text
  • http://tomei4x4.jp/js/upload/files/1554867242.pdfIn PDF document text
  • http://silver.jo/ckfinder/blanc/files/jewefu.pdfIn PDF document text
  • https://cubic.is/userfiles/file/tobotawosep.pdfIn PDF document text
  • http://cn-polylysine.com/d/files/zelumodixonawet.pdfIn PDF document text
  • http://dotykbylinky.sk/_subory/subory/82302817929.pdfIn PDF document text
  • https://greenlakecruises.com/ckfinder/userfiles/files/47374631526.pdfIn PDF document text
  • http://feuerwehr-mittenwalde.de/mediathek/files/4043607510.pdfIn PDF document text
  • http://citty.org/images/uploads/file/66996510155.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e8a774428---midado.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4bce7f743---14102345375.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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