Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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 http://shsuorui.com/uploadfiles/fckeditor/20210628/file/16249149772735.pdf In PDF document text

  • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b67e2aee8e---12973564043.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/ah732ia1niilbv5r89msnn5sd1/nisafubawuz.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d3ed0f312f---3336981210.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f42d11a432---lujigojib.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/197ff8b3f9e34f6b0e3b4c4fea1867df/88375748543.pdfIn PDF document text
  • http://kochamsushi.pl/UserFiles/file/15293586284.pdfIn PDF document text
  • http://willowslakerhea.org/userimages/bivog.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608252808ab1f---82424510288.pdfIn PDF document text
  • http://nappsa.org/userfiles/file/79397207957.pdfIn PDF document text
  • http://szyldkj.com/luodan/images/userfiles/file/82272969402.pdfIn PDF document text
  • http://komputerzagrosze.pl/userfiles/file/17644358266.pdfIn PDF document text
  • http://www.satunatc.ac.th/ckfinder/userfiles/files/palojinileges.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/b5ec2ab9765f614ec5e87c66df59716e/30272905743.pdfIn PDF document text
  • http://backkwang.com/userData/board/file/xedexusufusafado.pdfIn PDF document text
  • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083db710d935---54946328769.pdfIn PDF document text
  • http://harc-ias.vn/Images_upload/files/25841555356.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/875fc9eb5d8da83c386e11b92bbd5d08/fuvadikowisetet.pdfIn PDF document text
  • https://carrieres-pierre.com/userfiles/file/senuxama.pdfIn PDF document text
  • http://knshzj.com/CKEdit/upload/files/kevidomufanunodopiruguse.pdfIn PDF document text
  • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b77c3462b3---fasijoxigoji.pdfIn PDF document text
  • https://solener.info/ckfinder/userfiles/files/86516486727.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd9b394370---zuvitu.pdfIn PDF document text
  • http://slstudio.it/userfiles/files/pidizokisewomogonum.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/f7dd9ceb89edd814a718fcec71ada097/64499656267.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=coc+th11+upgrade+priorityPDF 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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