Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• AcroForm button with action trigger low PDF_ACROFORM_BUTTON
  PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
• 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://laborke.ru/uplcv?utm_term=change+app+permissions+android PDF link annotation

  • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/161438ab50ada9---sedevu.pdfIn PDF document text
  • https://agmatbaa.com/upload/files/74753063637.pdfIn PDF document text
  • http://elisa5888.com/shopadmin/upload/files/xolodo.pdfIn PDF document text
  • http://alarmy-kamery24.pl/userfiles/file/ropuzirebilalele.pdfIn PDF document text
  • http://www.aamuhsv-madisonalumni.org/files/files/bokutejokaragidesivujuje.pdfIn PDF document text
  • http://upnbkk.com/file_media/file_image/file/famokogobu.pdfIn PDF document text
  • http://dyneco.kr/userData/board/file/tosilopodebu.pdfIn PDF document text
  • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/c29a75fc5735edd8476994bfeb9f0e34/38555351937.pdfIn PDF document text
  • https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/pizugetejufo.pdfIn PDF document text
  • https://makenie.com/upload/files/54666077912.pdfIn PDF document text
  • https://linhngapt.vn/upload/files/30590354140.pdfIn PDF document text
  • http://adhdesign.de/userContent/files/20210914032454-63248217943.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0e3cb3b10---87244403109.pdfIn PDF document text
  • http://gdlianyu.com/uploadfiles/file/xovusufopiforaxe.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/eu86ebb4d67t8arkstm6i5old7/mimudosagasuludezejobije.pdfIn PDF document text
  • http://uptownchantilly.com/uploads/files/20648523783.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/7tqfbu9gje612ukhchr87kbmqa/50769475244.pdfIn PDF document text
  • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/3s07oq55jvbbjamqa5ie7kuqk2/xiwunifutomukapot.pdfIn PDF document text
  • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/b203b2a3a58d37a7f56a0edb7ea6401d/tuluzigot.pdfIn PDF document text
  • http://garagehayashi.com/js/upload/files/wavexajivajanif.pdfIn PDF document text
  • https://www.babetravelling.com/ckfinder/userfiles2/files/kawosifuwo.pdfIn PDF document text
  • https://oriontradecom.com/ckfinder/userfiles/files/86760394834.pdfIn PDF document text
  • http://studiosiriosrl.it/userfiles/files/lovuw.pdfIn PDF document text
  • https://bulgariapools.com/contents/files/lujakizo.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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