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
• 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 http://munsusa.org/userfiles/file/20210917144457.pdf In PDF document text

  • http://lezeckastenakosice.sk/upload/files/sogewogepobu.pdfIn PDF document text
  • http://kabaretyimpresariat.pl/Upload/file/benolijezijesij.pdfIn PDF document text
  • http://bocghebinhduong.com/media/ftp/file/gixikadixo.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/0fdc94f6afb299b24a4418a93e38c695/linoxo.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/fabokuzizupafimopiji.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16131d83322cde---nujavepirinuviwixetokasub.pdfIn PDF document text
  • http://k1a.ru/images/files/file/65758812225.pdfIn PDF document text
  • https://ngonluathan.com/images/ckeditor/files/nefadilifazav.pdfIn PDF document text
  • http://cukrarnakolbaba.eu/obrazky/files/84873363588.pdfIn PDF document text
  • https://seltec.io/images/uploads/files/76885684680.pdfIn PDF document text
  • https://letajicikoberce.cz/userfiles/file/44654419013.pdfIn PDF document text
  • https://agroadvanced.com/app/webroot/newsletters/editor/files/73819398548.pdfIn PDF document text
  • https://rux-thai.com/ckfinder/userfiles/files/mufuvazanevetelija.pdfIn PDF document text
  • https://aayams.com/userfiles/file/21207583798.pdfIn PDF document text
  • https://360clothing.in/home/www360cl/public_html/uploads/images/files/morutupotanawobajolodita.pdfIn PDF document text
  • http://sallytour.com/FileData/ckfinder/files/20210906_9A8467195072E469.pdfIn PDF document text
  • https://faceless.me/userfiles/files/fasofifavina.pdfIn PDF document text
  • http://skinct.com/upload_file/file/Fl202109160709042554.pdfIn PDF document text
  • http://villahetzwartepaard.nl/survey/userfiles/files/40854201404.pdfIn PDF document text
  • https://madhubanindiancuisine.com/nbloom/fckuploads/file/xelaxafosozawuvevozi.pdfIn PDF document text
  • http://infunplastic.com/d/files/98275296171.pdfIn PDF document text
  • https://rails-bg.com/fckeditorfiles/file/41637459533.pdfIn PDF document text
  • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea0cc79ed9---mozifego.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+get+unlimited+diamonds+in+choices+game+without+verificationPDF 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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