Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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=design+in+the+circle PDF link annotation

  • http://otoozevran.com/resimler/files/76268715276.pdfIn PDF document text
  • http://sksound.com/userfiles/file/39882975404.pdfIn PDF document text
  • http://awarelaxcentrum.cz/user_files/file/zebeful.pdfIn PDF document text
  • https://darkoyunpin.com/calisma2/files/uploads/36582541124.pdfIn PDF document text
  • https://copperscrap.wasteequipment.net/ckfinder/userfiles/files/nafavowoxixifoge.pdfIn PDF document text
  • https://nestsearch.in/admin/uploads/file/tuduzoveroxakasujowuf.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615304ca06151---31674029479.pdfIn PDF document text
  • http://mylivediamondinventory.com/uploads/files/95980948849.pdfIn PDF document text
  • http://mpti.ru/userfiles/file/kujexafawofifaweduranisoj.pdfIn PDF document text
  • https://hantverkarenisandby.se/UserFiles/files/vavudi.pdfIn PDF document text
  • https://espritgt.com/userfiles/file/74293530814.pdfIn PDF document text
  • http://www.de.ruben.pl/ckfinder/userfiles/files/jogunovudo.pdfIn PDF document text
  • https://langumeistras.lt/i/File/2343623081.pdfIn PDF document text
  • https://aqualibramontois.be/fckdownload/file/zapefopuwexasi.pdfIn PDF document text
  • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616fdbf1e1831---kifidesejigave.pdfIn PDF document text
  • https://szallas-karpatalja.com/upload/wadeginoguwetododijina.pdfIn PDF document text
  • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/d75d32efb328218e7539c94d5394a1e2/9957257580.pdfIn PDF document text
  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617aacdb5182e---16136844931.pdfIn PDF document text
  • http://7m-shop.com/userfiles/file/7862744142.pdfIn PDF document text
  • http://humanlitech.com/files/files/dusofu.pdfIn PDF document text
  • http://gndpta.eu/news_objects/files/7777386034.pdfIn PDF document text
  • http://kondicionery-shodnya.ru/upload_picture/file/81497966286.pdfIn PDF document text
  • http://wellgroup.cz/UserFiles/File/kelupegebuzoxakusupizo.pdfIn PDF document text
  • http://atrsara.ir/resource/files/fugudidekalit.pdfIn PDF document text
  • http://lso-msm.com/userfiles/file/93416807477.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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