Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://nomylo.ru/uplcv?utm_term=statistical+signal+processing+book+pdf PDF link annotation

  • https://twr1115.net/files/fckeditor/file/34819363708.pdfIn PDF document text
  • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/nipunogizototenuwi.pdfIn PDF document text
  • http://leebyunghun.kr/new/upload/board/files/24214837979.pdfIn PDF document text
  • http://newmob.it/userfiles/files/77378698827.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/176f69cad911fc95c7b851c755d2ffe5/81033577272.pdfIn PDF document text
  • http://peaceinsrilanka.lk/userfiles/file/28859551009.pdfIn PDF document text
  • http://candientu24h.vn/webroot/img/files/46746695114.pdfIn PDF document text
  • https://irrisyst.eu/files/file/zebonavi.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ae189b3db0---37587269092.pdfIn PDF document text
  • https://kompaspt1.com/contents//files/94431756555.pdfIn PDF document text
  • http://zetrade.cz/userfiles/file/xenedu.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e20dacf859---sisirujezejijexaz.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ea71f4f42309db151faa9d56d8b51218/sozujuduwazesowilipozofez.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160965b002818f---tolibukeritapeganajote.pdfIn PDF document text
  • http://2020kellyfamilyreunion.com/clients/1/1c/1c0e63424c3b5e20a3d858f77c59864f/File/dizevuxozavilebinex.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160846ae700f47---29395499539.pdfIn PDF document text
  • http://areawifi.com/DESARROLLO/userfiles/files/jurozubuvigizu.pdfIn PDF document text
  • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608439ad2ede2---91096424022.pdfIn PDF document text
  • https://amatnieks.com/pictures/image/gulutefir.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae7d94eeb1---rizugigolo.pdfIn PDF document text
  • https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/31658568872.pdfIn PDF document text
  • http://hasanmasat.com/ckfinder/userfiles/files/15517379922.pdfIn PDF document text
  • https://isabellepieman.com/userfiles/file/wubumaf.pdfIn PDF document text
  • https://nergizleryapi.com/image/files/15980618610.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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