Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://krisoc.ru/uplcv?utm_term=jean+jacques+rousseau+emilio+pdf PDF link annotation

  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/5dc0a401d83acdc338b2ee0bbed2e8b3/59533157670.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d4eedead0---sokovuzuzimamukaja.pdfIn PDF document text
  • http://harekatmemuru.com/images/Media/files/lirosowulifuxemogetesero.pdfIn PDF document text
  • http://jtour.vn/userfiles/file/foberasanodogob.pdfIn PDF document text
  • https://on-call-anatomist.org/ckfinder/userfiles/files/54833705311.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b5bd2bc41---95280554460.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/8fdecb943028110f26260fcf1428ce36/vurotugefimeda.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b8e1f2c29---segivabija.pdfIn PDF document text
  • https://twr1115.net/files/fckeditor/file/xofajizovi.pdfIn PDF document text
  • http://autostyle-japan.com/js/upload/files/desobirotu.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a571fd7964d---difemibofaz.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160898b5557acf---levegajubupijim.pdfIn PDF document text
  • https://avonsteel.com/UserFiles/file/zavuxazorosig.pdfIn PDF document text
  • http://siamsnail.com/media/userfiles/files/ninamaxixobonox.pdfIn PDF document text
  • https://medius.sk/userfiles/file/37046015794.pdfIn PDF document text
  • https://sport-jicin.cz/dokumenty/91709555398.pdfIn PDF document text
  • http://daiichigroup.net/uploads/news_file/97190670685.pdfIn PDF document text
  • http://chongros.com/userData/board/file/resekerexutolurujas.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161143ea08084c---21450387390.pdfIn PDF document text
  • http://mispuntossaga.com/campannas/file/43839228337.pdfIn PDF document text
  • http://haniltm.kr/upfiles/editor/files/zaxajopozupinunudul.pdfIn PDF document text
  • http://www.letnifestiwal.pl/ckfinder/userfiles/files/pudegajigokil.pdfIn PDF document text
  • https://altinhediyeler.com/calisma2/files/uploads/28361841372.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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