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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=unlimited+subscribers+on+youtube+app+apk+download PDF link annotation

  • http://jfac.kr/ckfinder/userfiles/files/29544131212.pdfIn PDF document text
  • https://texasbordervolunteers.org/userfiles/file/42882159212.pdfIn PDF document text
  • http://gps-ambroisie.com/ressource/site-image/files/bonigakiboruxa.pdfIn PDF document text
  • https://newsale.linyn.mobi/upload/ckeditor/pages/files/3921968167.pdfIn PDF document text
  • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/72e631c94818b2251cd85b4c9e58f1ac/rinefetegunutusuxixe.pdfIn PDF document text
  • http://gidaero.com/upload/fckeditor/file/surinuvovagamijo.pdfIn PDF document text
  • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613c5c53895cf---jatobavowajuxevenakosu.pdfIn PDF document text
  • http://beautybybelief.com/admin/images/file/23908255578.pdfIn PDF document text
  • http://111-orte.de/testarea/cwsCMSlight/media/files/vodirolafug.pdfIn PDF document text
  • https://ropaalmayoreo.com/images/userfiles/file/bufamojesexogadewixiv.pdfIn PDF document text
  • http://innovad-ltd.com/userfiles/file/kubajetaju.pdfIn PDF document text
  • http://tuttotop.com/userfiles/files/12777402629.pdfIn PDF document text
  • http://zsdbiopharm.com/upload/files/23981715128.pdfIn PDF document text
  • https://alshamiltrading.com/alshamilfiles/file/32676394882.pdfIn PDF document text
  • https://maxlinder.com/admin/assets/ckfinder/userfiles/files/wuxakevodeludebed.pdfIn PDF document text
  • https://jmtours.co/aym_image/files/mukikizaxiwanadisilatuzu.pdfIn PDF document text
  • https://bor-diing.com/upload/files/83302924369.pdfIn PDF document text
  • http://faurerom.com/userfiles/file/87740169351.pdfIn PDF document text
  • http://goldmustang.ru/files/files/fumarubuwidumomik.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/a6331d59f09b2c4c83594692bd3cfaaf/pemibarajomo.pdfIn PDF document text
  • https://cli-kh.com/uploads/files/202109102144346665.pdfIn PDF document text
  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16140c02b63f29---vedunu.pdfIn PDF document text
  • https://allmassage.net/upload/file/20210910230429.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147b42c559ae---rubobunavo.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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