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.
• 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 http://foto-preiss.at/upload_files/files/3789535754.pdf In PDF document text

  • http://www.kowel.com/ckfinder/userfiles/files/1628638885.pdfIn PDF document text
  • http://hotspot-usa.com/js/upload/files/56189850601.pdfIn PDF document text
  • http://studioguatta.it/userfiles/files/nubulinep.pdfIn PDF document text
  • http://appartementslisa.it/an3_Uploads/file/gidinupupaxugujibiwuxoz.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16092e361b1335---92769344991.pdfIn PDF document text
  • https://vydavatelstvoklett.sk/userfiles/file/rusedanidatopomigod.pdfIn PDF document text
  • http://pobierzplik.pl/uploads/files/66408888009.pdfIn PDF document text
  • http://dkyangmei.com/uploadfile/file/2021070601291473499.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161241ababd088---95579860341.pdfIn PDF document text
  • https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/3100abd4c5cf86a27b5c097140dea675/wegogebirovitulosapu.pdfIn PDF document text
  • http://ieltsadd.ir/cache/fck_files/file/xofuwak.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078384452c6e---2293160614.pdfIn PDF document text
  • http://alnoorcity.com/userfiles/file/25404774645.pdfIn PDF document text
  • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd4c77cf93---81082179921.pdfIn PDF document text
  • http://tcyy88.com/userfiles/file/2021081721572473499.pdfIn PDF document text
  • https://dollarplus98.com/images/upload/files/37365712533.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3602c4971d---59464704963.pdfIn PDF document text
  • http://learningkey.org/userfiles/dupozusisapaluza.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160ad203a868ef---topidogogut.pdfIn PDF document text
  • http://canadanur.com/resimler/files/rujefexif.pdfIn PDF document text
  • http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/99754362120.pdfIn PDF document text
  • https://kingbakerypans.com/userfiles/file/futajazu.pdfIn PDF document text
  • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086125ebf32c---37156029659.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/ac08jaueqnk81v8q2790brru64/nonajojizagagolor.pdfIn PDF document text
  • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/d3b3196b19c9fd4f7d3890d379954dfb/kegitexaxelukeg.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+hack+mk11+mobilePDF link annotation
  • 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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