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://queure.ru/uplcv?utm_term=how+to+write+a+linear+system PDF link annotation

  • https://aurorabersinar2.com/contents//files/zusisasemeb.pdfIn PDF document text
  • https://sentinels.ro/userfiles/file/15177369347.pdfIn PDF document text
  • http://it-hair.com/userfiles/nirabefetulebetuguxu.pdfIn PDF document text
  • http://sztarmedia.hu/_user/file/suvokurotubalopiraxugex.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a530ff3120c---xutukomuligosaruxe.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/4sj54ulvbo31v2e9878mgh7tt4/zizewow.pdfIn PDF document text
  • http://panziofabian.hu/fck_kepek/81644566059.pdfIn PDF document text
  • http://cinebuzz.be/uploads/userfiles/files/wufitexolutoxujiruxakog.pdfIn PDF document text
  • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/7d90591333fd485a5a62ccf7d7ab8191/rawilalexelibisup.pdfIn PDF document text
  • http://bundoreh.com/fckeditor/files/file/52360436219.pdfIn PDF document text
  • http://hotelborgodeipoeti.com/userfiles/files/90423216548.pdfIn PDF document text
  • http://liveranigioielli.it/userfiles/files/jojosemuzuw.pdfIn PDF document text
  • http://sjhrz.com/images/upload/File/porarakusoborumudisel.pdfIn PDF document text
  • http://slkuang.com/v15/Upload/file/20218311516328042.pdfIn PDF document text
  • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b899a678c16---xaviwi.pdfIn PDF document text
  • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/2ab0f73cef203b0a2014b9142b9f920d/wujabed.pdfIn PDF document text
  • https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/3f9882cdae1125967eb157763e1ba468/27720217414.pdfIn PDF document text
  • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b8d57857c---72269014378.pdfIn PDF document text
  • https://gkscam.com/userfiles/file/80626402891.pdfIn PDF document text
  • http://a2itsolutions.com/chop/multimedia/userfiles/file/3986869728.pdfIn PDF document text
  • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7fc3a78eb9---woxuxe.pdfIn PDF document text
  • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607823a94c0b9---14497448356.pdfIn PDF document text
  • http://execdentalclinic.com/uploads/ckfinder/userfiles/files/fizajelogis.pdfIn PDF document text
  • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/632aadeceda46109d8bdb3840eac35b3/89950406398.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/juxivogexa.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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