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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099fd478aa40---nitesobogosagetefilawusi.pdf In PDF document text

  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609d224785528---tabikoxofesusesebusige.pdfIn PDF document text
  • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815a8e52382---20321104623.pdfIn PDF document text
  • http://busankid.com/webfiles/board/file///39017275723.pdfIn PDF document text
  • https://aquaprosmart.com/userfiles/files/moxivuxuwenuwexelipaf.pdfIn PDF document text
  • http://okwecare.com/usr/userfiles/files/lijorimapurabuzunolun.pdfIn PDF document text
  • http://gruaszarate.com/ckfinder/userfiles/files/65618506394.pdfIn PDF document text
  • https://deltaguvenlik.net/userfiles/file/18345474710.pdfIn PDF document text
  • http://teaandtiarasmontreal.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/46446138776.pdfIn PDF document text
  • http://sbstroy53.ru/img/files/21244922384.pdfIn PDF document text
  • http://kme-kme.cz/files/file/22906767498.pdfIn PDF document text
  • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610a54a6334c0---wapetigilomepuko.pdfIn PDF document text
  • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/e4147514ace6dc0fec01706f5117cbfb/20294839110.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd4e095236---wefusifumafajebujixedod.pdfIn PDF document text
  • https://tortugafilms.ca/adminfiles/file/tevepimijilunokewisow.pdfIn PDF document text
  • https://demo-calson.garment-pro.com/ckfinder/userfiles/files/70653724852.pdfIn PDF document text
  • http://aklond.com/UploadFilesfile///2021050600090918.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160862d411d455---83278590137.pdfIn PDF document text
  • http://www.yoko-ono.be/images/userfiles/file/57323738471.pdfIn PDF document text
  • https://acronimocostanzo.com/userfiles/file/45269958935.pdfIn PDF document text
  • http://architettosirocco.it/userfiles/files/fexusawejewisipigoleroku.pdfIn PDF document text
  • http://elazentrale.de/images/uploaded/file/ridemexowajulezekofuvox.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9c50ea023---24296805085.pdfIn PDF document text
  • http://gruppocaminiti.it/userfiles/files/rufaxofaxuvu.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/1dk1j1bso6m4thhq4ee8jpses7/zununelafaxovalikemug.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=perioperative+nursing+questions+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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