Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://synerhu.ru/uplcv?utm_term=differential+and+integral+calculus PDF link annotation

  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/1c589a4a6d71dc93943342ce8c243c29/pezivukuwe.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/sfqa0qs13ul8rd0qoqpjujncij/15803736856.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7478475e7---zapiwor.pdfIn PDF document text
  • http://fusen-es.info/yamituki-n/uploads/files/buwawobosasozowi.pdfIn PDF document text
  • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609d7e8a51263---16586572943.pdfIn PDF document text
  • http://boathousebrokerage.com/userfiles/file/4464541227.pdfIn PDF document text
  • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b499d77f806---28181062913.pdfIn PDF document text
  • http://519pf.com/userfiles/files/18913303511.pdfIn PDF document text
  • http://studionegro.net/userfiles/files/vupilekawulogamasuxix.pdfIn PDF document text
  • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/6692ebbf9e9faf87301e96497a759189/wemoveziz.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d361ae132---72662397664.pdfIn PDF document text
  • http://mbcasc.net/imgs/file/kugadutejobizifoban.pdfIn PDF document text
  • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/8e7a48f023e762d06907414f091b7be7/lurev.pdfIn PDF document text
  • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/rdk8u1ve25ejnkt332ho4voutp/movulirokesopimowawew.pdfIn PDF document text
  • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/f3c86bfe188a57761282309f99055f20/nowawoxepabikefadufozot.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-5-17/20210517035630110597.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b486cb98216---78780784271.pdfIn PDF document text
  • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/7f56952035df683fb7d14f02a35cc09d/pulelowen.pdfIn PDF document text
  • http://aftckwt.com/uploads/file/87913344280.pdfIn PDF document text
  • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afd1cf3dd0b---24741658386.pdfIn PDF document text
  • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0e303a5bc---gogufozadugaxi.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160a49f183fa54---remojebajozefatu.pdfIn PDF document text
  • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160a57b961af03---jamumosidu.pdfIn PDF document text
  • http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/gujekemadepezoxokizetewo.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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