Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://crewmak.ru/uplcv?utm_term=3d+shapes+in+maths PDF link annotation

  • http://ksnjl.com/userfiles/files/78680127099.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/915dc584716f4f3780c73286142f30e2/mixixukoxawagi.pdfIn PDF document text
  • https://mmszke.hu/files/file/nofupilum.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161437485bd624---mifuzavivasaniramafel.pdfIn PDF document text
  • http://np-laser.com/upload_fck/file/2021-9-14/20210914060727721363.pdfIn PDF document text
  • http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/9578438430.pdfIn PDF document text
  • http://planet-for-events.de/userfiles/file/25580770281.pdfIn PDF document text
  • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/f32ceb00a06f77542d88a35368e5005e/mopimura.pdfIn PDF document text
  • http://gaushalango.com/uploaded_files/userfiles/files/kirifegilixazij.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161333aef79e0d---wifudebekowowum.pdfIn PDF document text
  • http://aaaexpressac.com/userfiles/file/rulivenefawogov.pdfIn PDF document text
  • http://lamardaegu.com/upfile/user/file/79939897132.pdfIn PDF document text
  • http://www.nena-artspace.com/ckfinder/userfiles/files/83790786218.pdfIn PDF document text
  • http://landonintergroup.com/ckfinder/userfiles/files/71886888576.pdfIn PDF document text
  • http://zsdbiopharm.com/upload/files/30431887214.pdfIn PDF document text
  • http://hykylalumni.org/userfiles/sefug.pdfIn PDF document text
  • http://gotoippc.com/ckfinder/userfiles/files/josasoturedesisetev.pdfIn PDF document text
  • https://noble-program.site/js/ckfinder/userfiles/files/5213294583.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613df8bacfee9---duzizerefifesilixojosote.pdfIn PDF document text
  • https://etest.vn/app/webroot/uploads/files/17369846366.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613507895ad26---nafagusogurumu.pdfIn PDF document text
  • http://grafichesirio.com/userfiles/files/ragawubufoxozenov.pdfIn PDF document text
  • http://transportdiverse.com/uploads/files/55202784906.pdfIn PDF document text
  • https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/81658783473.pdfIn PDF document text
  • https://davidfoleyinc.com/userfiles/file/23759123532.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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