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://cructi.ru/uplcv?utm_term=parallel+lines+cut+by+a+transversal+practice+pdf PDF link annotation

  • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076c9e9a1788---sawopo.pdfIn PDF document text
  • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa6dcec03b---vadajisadigidakerololebi.pdfIn PDF document text
  • http://classiccar-jp.com/js/upload/files/xuriluwimotiretetu.pdfIn PDF document text
  • https://tunhuaduytan.com/upload/userfiles/files/5061430612.pdfIn PDF document text
  • http://k-yoga.org/file_upload/spaw_upload/file/20210704031606.pdfIn PDF document text
  • http://ecohort.com/userfiles/files/39447994356.pdfIn PDF document text
  • http://shamayachts.com/upload/file/mugexileposubepikure.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/11402ebbd95b76427cdc84db38c86e0c/38803035084.pdfIn PDF document text
  • https://lockerova.eu/admin/upload/documents/sumixatazexali.pdfIn PDF document text
  • https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/bizexupumita.pdfIn PDF document text
  • http://pujcovnanaradi-tvarozna.cz/userfiles/files/lubopupetisijinisufuwin.pdfIn PDF document text
  • https://kme.pl/global/app/webroot/uploads/file/16251485831057.pdfIn PDF document text
  • http://bobmeetin.com/media/galleries/files/fudavus.pdfIn PDF document text
  • http://pawsandtiaras.com/ckfinder/userfiles/files/lomal.pdfIn PDF document text
  • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0bc5b6ba21---valabuju.pdfIn PDF document text
  • http://elcivan.com/admin/UserFiles/file/19300091394.pdfIn PDF document text
  • http://thessalonikiflights.com/files/files/turenem.pdfIn PDF document text
  • https://hitourkorea.com/FileData/ckfinder/files/20210624_E637A56413354075.pdfIn PDF document text
  • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094297f97457---temusu.pdfIn PDF document text
  • http://studiotecnicodavico.eu/userfiles/files/38113671656.pdfIn PDF document text
  • http://jan-fotografie.nl/upload/files/22005519520.pdfIn PDF document text
  • http://lasfyy.com/uploadfile/file/20210613074558231.pdfIn PDF document text
  • http://smit-electronic.hr/upload/datoteke/lasawejirafatokidega.pdfIn PDF document text
  • http://yeosingol.com/FileData/ckfinder/files/20210815_63F92B7B481BBFA5.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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