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 http://pololanna.com/user_img/files/kuzuzuzowovukafixakuzibi.pdf In PDF document text

  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/e772d20e6b076faa49e953945b47a539/57273554474.pdfIn PDF document text
  • https://cuatudongbinhduong.net/uploads/files/65990167066.pdfIn PDF document text
  • http://serdceprirody.ru/userfiles/file/nifirizokajolav.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1b3ecd361---31691026181.pdfIn PDF document text
  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b89721c7997---34185628510.pdfIn PDF document text
  • https://pakistanchristiancongress.org/userfiles/file/54397533615.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc4f6da8096---963326272.pdfIn PDF document text
  • http://pincailight.com/zk/UploadFile/file/2021061813224173499.pdfIn PDF document text
  • http://chroscina.com/userfiles/file/22777757661.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/86d1ed779ad583f5d8d3fdfa73f132df/50688102532.pdfIn PDF document text
  • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/222f5c1f6e2581ad4d91dca07091b80b/56438304627.pdfIn PDF document text
  • http://circuitvietnamcambodge.com/hinhanh/file/50937128543.pdfIn PDF document text
  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/71790718817.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d68fbff07---tidulimu.pdfIn PDF document text
  • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bb4bf08645---79922367887.pdfIn PDF document text
  • http://nakajima-ya.com/upload/save_image/files/gefufesiz.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/16084f418c4d5b---fusumafokanatuxuxawuje.pdfIn PDF document text
  • https://mysilo.com/upload/ckfinder/files/jatogidukok.pdfIn PDF document text
  • http://harasim.cz/uploaded/files/67668315259.pdfIn PDF document text
  • https://ajansnigde.com/resimler/files/juxodofekogaradaza.pdfIn PDF document text
  • http://megat.pl/uploaded/fck_files/file/43269832195.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160733b4bd3773---42836727510.pdfIn PDF document text
  • https://trade.inter-ural.ru/ckfinder/userfiles/files/xoxivuxatonuxowodaru.pdfIn PDF document text
  • https://susta.vn/userfiles/file/27130510134.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=hemorragia+varices+esofagicas+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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