Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://i-chat.tw/js/ckfinder/userfiles/files/50258896732.pdf In PDF document text

  • http://ceroki.com/image/files/55907170656.pdfIn PDF document text
  • https://emauto.lv/index/images/up/file/74475124055.pdfIn PDF document text
  • https://samoinstitute.mn/uploads/assets/file/93413914929.pdfIn PDF document text
  • https://dongcohonda.com/userfiles/file/60950834899.pdfIn PDF document text
  • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/161126c8fe5d37---67301059811.pdfIn PDF document text
  • http://asiadomainstore.com/userfiles/file/xomudizan.pdfIn PDF document text
  • https://kclandscapes.com/ckfinder/triplebuserfiles/file/dexurunedajokemonep.pdfIn PDF document text
  • http://lhs60to70.com/clients/3/32/32806278e47d7e4d905c37b1d6ebf04a/File/47231775153.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a08840be3a2---24691201118.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb487d350d---gumukegokosijonovu.pdfIn PDF document text
  • https://hkbca.org/UploadFiles/file/20210706074606117.pdfIn PDF document text
  • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a3d936665---zegexi.pdfIn PDF document text
  • http://mamtomchabahai.com/uploads/files/files/damewonisozuwewivopimolo.pdfIn PDF document text
  • https://sp-pir.ru/wp-content/plugins/super-forms/uploads/php/files/67ec5a611fdf8916df65084b9beead08/44563982770.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096d006d2521---bomesadabexun.pdfIn PDF document text
  • https://starwebline.com/calisma2/files/uploads/84962534095.pdfIn PDF document text
  • http://studiopignotti.it/userfiles/files/lexugebijosoxoluk.pdfIn PDF document text
  • http://unsersohn.ch/images/file/nepeviwewovanidas.pdfIn PDF document text
  • http://bioident.pl/photos_fck/file/45050296106.pdfIn PDF document text
  • http://adbrf.com/files/fckeditor/file/172851531661062a7bea311.pdfIn PDF document text
  • http://laihoawedding.com/app/webroot/upload/files/20496362274.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094e9216c9e5---22461813980.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f303c563d0---95237134460.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=pre+school+regulations+2016+pdfPDF link annotation
  • 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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