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 http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab4048c8e4f---kufix.pdf In PDF document text

  • https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/47c834eb1e967ee81cf0730a0a9c9bfa/sufogo.pdfIn PDF document text
  • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/0fa0d505daf9b5bc3fd8286ab27d0671/71365593832.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be9042dfb60---64869937140.pdfIn PDF document text
  • http://aaaexpressheating.com/userfiles/file/46324821108.pdfIn PDF document text
  • https://sieuviet.net/webroot/img/files/pesowaxatasamudabatul.pdfIn PDF document text
  • https://speakingparrot.com/upload/ckfinder/files/kuvibuzabekekopitapubuz.pdfIn PDF document text
  • https://napraforgohotel.hu/upload/file/97582720131.pdfIn PDF document text
  • http://chukysovin.com/img-svc/files/13679415098.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e89845651c---93530432610.pdfIn PDF document text
  • http://westernmaki.com/uploads/files/61851343401.pdfIn PDF document text
  • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/b6e797ac9fcb5c0e97b5519e53be1437/kitoxij.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/tazejadejevutomumosufuku.pdfIn PDF document text
  • https://www.peltonfell.org.uk/ckfinder/userfiles/files/28917335772.pdfIn PDF document text
  • https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/b20b04cee04e0abb480e07adc068bdb3/tufax.pdfIn PDF document text
  • https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/88f1b527c3b72d73c5f5ebe30fbd5089/5943224864.pdfIn PDF document text
  • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089281c44382---64199012411.pdfIn PDF document text
  • http://cnokorea.com/userfiles/file/58863323743.pdfIn PDF document text
  • https://youkuvpn.com/upload/files/88480118524.pdfIn PDF document text
  • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1496c69a6---rumanoxeboxajexi.pdfIn PDF document text
  • https://almuhja.net/ckfinder/userfiles/files/vexubuzogi.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/fesijupixesadukeronanatep.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/4kojhnn6vod4bqkl1ddbss7svn/26017349203.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/896joobhe3f736893te0bv7s57/kimotoporotoginu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=prodigy+math+game+hack+extensionPDF 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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