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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://infrive.ru/uplcv?utm_term=pdf+generator+using+javascript PDF link annotation

  • https://envida-nieuws.nl/bsb_website/upload_fck/file/dupomed.pdfIn PDF document text
  • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/c39a433fb16c745eb2c77780c1eab580/gaburunix.pdfIn PDF document text
  • http://zhengfutz.com/v15/Upload/file/202162016562041.pdfIn PDF document text
  • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/a30c8437892673a0a7d0359fdd291ea7/33276116508.pdfIn PDF document text
  • http://amandatour.ru/js/ckfinder/userfiles/files/xobulabogu.pdfIn PDF document text
  • http://architettotamborra.eu/userfiles/files/wosukowutumuxabiteg.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf4ce675d4---sukikadapobisela.pdfIn PDF document text
  • http://abwingscolley.com/uploads/files/3970497135.pdfIn PDF document text
  • https://przyklejki.pl/userfiles/62912581139.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/d9c0b3fa0c2c220704d6ab5734559395/93439581798.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/kf3kq4vc6m94i4iu9pt25i4hfs/kowebavepowusos.pdfIn PDF document text
  • http://karthikeyanjayaram.com/userfiles/file/28795694969.pdfIn PDF document text
  • http://savvyais.com/userfiles/file/65257903058.pdfIn PDF document text
  • http://bularz-auto.pl/images/userfiles/file/notejudemaluxitixuti.pdfIn PDF document text
  • http://carzip.biz/files/uploads/files/16582732389.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d6960852f---15151493515.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0990b20c2---95200982321.pdfIn PDF document text
  • http://ecohost.ru/pics/images/file/14230952751.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/789d64cd0d8c85041c34148c6b6024ac/93931623579.pdfIn PDF document text
  • https://myphambambi.com/webroot/img/files/28189023716.pdfIn PDF document text
  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b497917b98d---67573611824.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/p040q9g6habpejot07polqnh33/57055283223.pdfIn PDF document text
  • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/12f0b4ec8a79562f3e95fd14cac26d77/89134257557.pdfIn PDF document text
  • http://asupuro.com/user_data/image//file/vanumoruzupatunukonek.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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