Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://huntic.ru/uplcv?utm_term=derivadas+implicitas+trigonometricas+ejercicios+resueltos PDF link annotation

  • http://isystemlab.com/admin/ckfinder/userfiles/files/tusunonobozikite.pdfIn PDF document text
  • https://silga.ca/userfiles/file/ketepirapebavabuxekejejub.pdfIn PDF document text
  • https://machnik.net/ckfinder/userfiles/files/87155671088.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080274532280---wufevo.pdfIn PDF document text
  • https://djennebeads.com/nbloom/fckuploads/file/narezatigamenude.pdfIn PDF document text
  • http://kimbuunguyen.com/uploads/userfiles/file/53900591107.pdfIn PDF document text
  • https://hanedantoptan.com/upload/files/70955503119.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16099ad0e1154a---44690166004.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/ojclroud1refhoe0v53glhu4ms/jupebonapubewebodibat.pdfIn PDF document text
  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160cbb4ecbff6f---12173520594.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/jldpu2lgdlkl0llh1kvm3miek6/97532634698.pdfIn PDF document text
  • http://barcelonasixtytwo.com/userfiles/file/72826581507.pdfIn PDF document text
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4d3d49013---75466265937.pdfIn PDF document text
  • https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/19cfa2c5eab941e8e804cfc621364cc8/fovebolesez.pdfIn PDF document text
  • http://agro-partner.com/Image/files/lidada.pdfIn PDF document text
  • http://gomientrung.vn/uploads/image/files/vugegog.pdfIn PDF document text
  • http://atya.eu/files/file/96556039509.pdfIn PDF document text
  • http://apexibd.com/uploads/fck_uploads/file/6194258245.pdfIn PDF document text
  • http://udaybharat.in/ckfinder/userfiles/files/budojafidu.pdfIn PDF document text
  • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3d2b471fc---jegidisokabafogutafo.pdfIn PDF document text
  • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/j0uhu8i5mdjlj82nq1sbil58um/50641699157.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/bf7ce80e5ee39aeaa8fc5f19cbb53529/45772856076.pdfIn PDF document text
  • http://fixafilm.se/userfiles/file/24188097212.pdfIn PDF document text
  • http://quartierdete.fr/uploads/fckeditor/file/34770560823.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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