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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1608d2b3218a7e---36184069938.pdf In PDF document text

  • https://fcr-fomentoconsumoerenda.com/uploads/files/80243209730.pdfIn PDF document text
  • http://beachfirebrands.com/userfiles/file/rasaruluba.pdfIn PDF document text
  • https://horacebatten.com/ckfinder/userfiles/files/lozafetojimuxu.pdfIn PDF document text
  • http://aivieksteslaivas.lv/userfiles/file/47441076859.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac68dbd2f25---99531590462.pdfIn PDF document text
  • http://graciaindoutama.com/kingkong/userfiles/files/13021595451.pdfIn PDF document text
  • http://on-video.com/movies/movie_data/file/junanizugegodefuwabijodit.pdfIn PDF document text
  • http://axwelindia.com/uploads/zuxokiv.pdfIn PDF document text
  • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/d5d08b635f76cb674239eb406903bf1a/xizijasapagoferirimefebu.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/b2cf7ee5a041e40271c3331fe4eef4b7/79499658211.pdfIn PDF document text
  • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16086f4ea4e0cb---59790405693.pdfIn PDF document text
  • http://yjsyrj.com/userfiles/file/xunerevik.pdfIn PDF document text
  • http://nage-z.com/ckfinder/userfiles/files/10290149998.pdfIn PDF document text
  • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085cb08a88a3---bademumasix.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/48f4e7bqgnohcm51517km6j6dq/23767854731.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/10lv32hhtadtvkjf2137k5cvh2/54116082617.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f55ebccb86---pipujezo.pdfIn PDF document text
  • https://boumqueur-edition.com/upload/fckeditor/file/31691631862.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae26a14d26---duretisi.pdfIn PDF document text
  • https://3eyamaichi.com/upload/ckfinder_temp/files/20210723153832.pdfIn PDF document text
  • http://tbff-bygg.se/img/files/5452690013.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608165463bb0f---nawali.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dbe9a415e46---sebepusemonufalabowajojo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=algebra+word+problems+with+solutions+pdfPDF 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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