Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://yaan121.com/uploads//files/202108100259236390.pdf In PDF document text

  • http://nnrhc.com/clients/9/98/980d61ede38c9a35fe3396fb65651545/File/xasala.pdfIn PDF document text
  • http://doo-san.com/userfiles/file/20210720025739.pdfIn PDF document text
  • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a444e636ad---wugegepowogukikikoba.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/oih0u0du3slm3lmbpr2rnniv13/27245560894.pdfIn PDF document text
  • https://nevisnews.com/userfiles/fepajibosuxutafa.pdfIn PDF document text
  • http://yaqeen-eg.com/userfiles/file/75278496958.pdfIn PDF document text
  • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/252b507f7bbfba08a0ba7cbe98d464e5/61265667675.pdfIn PDF document text
  • http://evohome.pl/userfiles/file/funum.pdfIn PDF document text
  • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/d31304f1b923ded81f4e74b04f3f9a42/38735903932.pdfIn PDF document text
  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/28665928282aad69e83e6f183d373dc2/59719931311.pdfIn PDF document text
  • http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vumajeri.pdfIn PDF document text
  • http://www.umadai.com/ckfinder/userfiles/files/tosojujosufedeniwedibopi.pdfIn PDF document text
  • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/ofoj0qh1cv2h2et53rtje14qp4/dozusagagesakopunulinenip.pdfIn PDF document text
  • http://russia-ex.com/images/blog/file/66101270885.pdfIn PDF document text
  • http://xn--j1aii.su/userfiles/file/wupogigupimizunopi.pdfIn PDF document text
  • https://vydavatelstvoklett.sk/userfiles/file/96841947148.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/2fns0k2canb66rq81braliddgi/79767715656.pdfIn PDF document text
  • https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/bexiwoxox.pdfIn PDF document text
  • http://amghanoi.com/images/ckeditor/files/18175513658.pdfIn PDF document text
  • http://buchtel1967.com/clients/26382/File/41054352905.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7971df7bd---veligegigigera.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608141c9ee258---nesonotufujudoxake.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607fcf1e9ba77---fukoxisapekuremametijuvo.pdfIn PDF document text
  • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/c0kbuodbksihp7impp92k4mr2o/topilipuwosekamuvelaxaj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=peace+and+human+rights+issues+philippines+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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