Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://coretry.ru/uplcv?utm_term=keyboard+suggestion+android PDF link annotation

  • https://tasivn.com/upload/ck/files/41199314547.pdfIn PDF document text
  • https://partetesal.ir/data/file/sosadojurajudibuta.pdfIn PDF document text
  • https://pgp-puh.hr/fck_media/file/nebarenulejakew.pdfIn PDF document text
  • http://stoka-saarlouis.de/userfiles/file/figosinigojukazuta.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/96615462150.pdfIn PDF document text
  • http://bbu.vn/Images_upload/files/lupedudon.pdfIn PDF document text
  • http://sergeisurzhin.ru/ckfinder/userfiles/files/69342600480.pdfIn PDF document text
  • http://radis-rrl.ru/userfiles/image/75746313669.pdfIn PDF document text
  • http://medicalproduct.hu/images/files/20588186271.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614439cc6b53f---24450035950.pdfIn PDF document text
  • https://amigo-shop.105h.net/upload/files/kopagedajubebopap.pdfIn PDF document text
  • http://meandnetworking.com/ckfinder/userfiles/files/wezojowe.pdfIn PDF document text
  • https://negaratoto.com/contents/files/rizeverozulekuzos.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec71be183e---48960053400.pdfIn PDF document text
  • http://drivingschool-brno.eu/files/kepobatebefor.pdfIn PDF document text
  • http://duocthientam.com/uploads/ckfinder/files/jolufiwazavaxerepagogup.pdfIn PDF document text
  • http://simonkuehner.de/gfx/userfiles/files/33470734186.pdfIn PDF document text
  • http://mulroyenvironmental.ie/userfiles/file/sokezebilulunof.pdfIn PDF document text
  • http://aallergy.netlovestories.com/upload/files/gofenebelatewut.pdfIn PDF document text
  • http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/996104094.pdfIn PDF document text
  • http://www.prctech-th.com/ckfinder/userfiles/files/zuwawozij.pdfIn PDF document text
  • http://ttworld.hu/uploads/content_files/files/davosoledatiju.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613683370d924---wugukesolozenanalavax.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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