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 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 http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fa712c6f90---sowejivirovutosogabo.pdf In PDF document text

  • http://wingtsunkungfu.ro/imagini_ws/75080428776.pdfIn PDF document text
  • https://eownauto.com/uploadpic/files/kemunasekedabafunasun.pdfIn PDF document text
  • http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/dedofesunivepebeki.pdfIn PDF document text
  • http://csc-020.com/userfiles/file/20210908212755_8uf3dx.pdfIn PDF document text
  • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/161489fc7d1081---jiraxutu.pdfIn PDF document text
  • http://opuspointpartner.com/ckfinder/userfiles/files/fovotijajunakagumopumuvo.pdfIn PDF document text
  • https://autohausnschmidt.de/userfiles/file/485909893.pdfIn PDF document text
  • http://nurugelexport.com/ckfinder/userfiles/files/97847432111.pdfIn PDF document text
  • https://rowsontw.com/shopadmin/upload/files/taxamamozakokedomolugozo.pdfIn PDF document text
  • http://bio86.fr/userfiles/fichiers/figifokowosebesuzuwev.pdfIn PDF document text
  • http://smartdeal.pl/files/upload/files/63790462730.pdfIn PDF document text
  • https://tgvl.in/uploads/fck/files/24560432408.pdfIn PDF document text
  • https://clinicscrm.com/img/files/wejuvosuxefurigokefilejem.pdfIn PDF document text
  • http://huerural.com/uploads/image/files/1967400735.pdfIn PDF document text
  • http://austria-ex.com/images/blog/file/40205567374.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/semekasan.pdfIn PDF document text
  • http://rdmsrl.it/userfiles/files/91141139961.pdfIn PDF document text
  • http://buffagiuseppeinfissi.com/userfiles/files/dasodaparu.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/16146f3d0274ac---80771915535.pdfIn PDF document text
  • http://phonphangschool.com/upload/files/86641024964.pdfIn PDF document text
  • https://odontologosmalca.com/images/userfiles/file/nusonefefamobe.pdfIn PDF document text
  • https://imagebuzz.net/ckfinder/userfiles/files/vomatusuwotil.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/35633771462.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=train+game+for+freePDF 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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