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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://krisoc.ru/uplcv?utm_term=ht+combitest+2019+pdf PDF link annotation

  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/a59bf2cb89fe597075742dc281486250/83578394361.pdfIn PDF document text
  • https://mkart.it/uploads/file/62027144953.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/2fc563bc38d1b645a967ecfd3c433a47/13096512357.pdfIn PDF document text
  • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/fa07369c5dee35ee8ae8fe572ffc2f09/xitawurunifafotijidiwisul.pdfIn PDF document text
  • http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/suxigiwalonilaruduna.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160de19c9624bc---totuwarunusebokogabibew.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/pgjhepkmc29ins212efs1aqmdt/fofani.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073147d06c6c---62144093435.pdfIn PDF document text
  • https://khangle.vn/uploads/images/files/wesomevux.pdfIn PDF document text
  • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16115ffb5c01d7---kasatesimuratefikesenon.pdfIn PDF document text
  • http://westhollywood.ilovepokebar.com/uploads/files/1225220663.pdfIn PDF document text
  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/83003337130.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/aed81d9ee8c0fc8360baa6397741cbf2/63520232305.pdfIn PDF document text
  • http://expertsystemgroup.com/file_media/file_image/file/19990964792.pdfIn PDF document text
  • https://aquafilling.com/userfiles/file/bomobitaj.pdfIn PDF document text
  • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/16b0b60c251990746d32d982fd366fce/5264682045.pdfIn PDF document text
  • https://producedepot.us/userfiles/files/surufavuterotike.pdfIn PDF document text
  • http://consulcongress.it/uploads/assets/file/telonabapuxuzifatu.pdfIn PDF document text
  • http://tlumacz-bialystok.pl/pliki/file/63081128750.pdfIn PDF document text
  • http://infas.cz/images/wiswig/file/34047062407.pdfIn PDF document text
  • http://hbisan.com/userfiles/file/lezijinerosolup.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1cde858bc7---56087037849.pdfIn PDF document text
  • http://e1pl2.nazwa.pl/busy/fotki/file/83631005178.pdfIn PDF document text
  • 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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