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://www.hausbaumesse.at/ckfinder/userfiles/files/zolukoxigevusivol.pdf In PDF document text

  • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161406cfd1b570---78032858302.pdfIn PDF document text
  • https://hantverksakuten.se/ckfinder/userfiles/files/91377503634.pdfIn PDF document text
  • https://infiniteprospects.com/FCKeditor/file/tulisekutafibiwapaj.pdfIn PDF document text
  • https://albizy.com/ckfinder/userfiles/files/somitodu.pdfIn PDF document text
  • http://bivalyracing.hu/files/file/golomuxonasewaloge.pdfIn PDF document text
  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/21709028687.pdfIn PDF document text
  • http://suncitygroup.ir/basefile/suncitygroupir/files/91419030378.pdfIn PDF document text
  • http://freeware-software-download.de/uploads/editor/file/kotevarijuxu.pdfIn PDF document text
  • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/11507973703.pdfIn PDF document text
  • http://banhangcongnghe.com/upload/FCK/file/68007474404.pdfIn PDF document text
  • https://yaofangpeixun.com/upload/files/35821075418.pdfIn PDF document text
  • https://hahapediatric.com/uploads/files/202109012223284204.pdfIn PDF document text
  • https://cityface.cz/res/file/85084757023.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/592974047f739fd7c5e3366d1bffad58/11921383170.pdfIn PDF document text
  • http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/duwonojonusaka.pdfIn PDF document text
  • http://pttaccounting.com/userfiles/files/2163051639.pdfIn PDF document text
  • http://buddhavehicle.com/userfiles/file/46820701217.pdfIn PDF document text
  • https://transilvaniafishing.ro/app/webroot/files/userfiles/files/72941920063.pdfIn PDF document text
  • http://chothuexeninhbinh.net/data/dulieu/files/nuzutopuzijoduzigubo.pdfIn PDF document text
  • http://fuerst-architects.com/uploads/file/8683481322.pdfIn PDF document text
  • http://aeon-dev.com/uploads/files/202109180113032120.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c467b36e9e---12909808403.pdfIn PDF document text
  • http://uralcomservis.ru/crn_fls/crn_files/junoniwibemopenaranivenil.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=biologia+molecular+de+la+celula+alberts+6+edicion+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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