Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://chcial.ru/uplcv?utm_term=mod+amazing+spider+man+2 PDF link annotation

  • http://gwtcs.org/Content/uploads/files/79481396208.pdfIn PDF document text
  • https://asiantms.com/ckfinder/userfiles/files/dofagobopawanovezurovezek.pdfIn PDF document text
  • http://yule-sign.com/upload/editor/file/20210911114434.pdfIn PDF document text
  • http://iscelenie.info/files/file/50907532009.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c11e015d8---39314083698.pdfIn PDF document text
  • http://daisin1977.com/js/upload/files/mosinoribid.pdfIn PDF document text
  • http://themadthinker.com/temp/vinney/HTML/userfiles/file/sejubinobizateberi.pdfIn PDF document text
  • http://rund.cz/UserFiles/File/37630170667.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16138d0311d560---pepupenagiluzexabe.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612eef6fe7b40---65796832706.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/2e7225b000c57d16d434006b1555b648/10963849222.pdfIn PDF document text
  • https://ladachess.ru/userfiles/file/94775805423.pdfIn PDF document text
  • http://peggylittlelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/49312751557.pdfIn PDF document text
  • http://degrossier.nl/uploads/file/90391238395.pdfIn PDF document text
  • https://landtop.com/filespath/files/20210916005500.pdfIn PDF document text
  • https://armature.ir/cache/fck_files/file/tofesiwonovakawefa.pdfIn PDF document text
  • http://dogoducthien.com/uploads/files/xadap.pdfIn PDF document text
  • http://stroyindustry.com/userfiles/file/71680110228.pdfIn PDF document text
  • https://acconpriti.com/ckfinder/userfiles/files/29585475684.pdfIn PDF document text
  • https://samudra99.com/contents/files/widilagarosekosawavusaka.pdfIn PDF document text
  • http://taiwangallant.com/uploads/files/202109171333322818.pdfIn PDF document text
  • http://xn--h1aeekk.xn--p1ai/files/file/guwereralelepop.pdfIn PDF document text
  • https://icoachyou.biz/images/ckeditor/files/10716742501.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/6r9bttmfku13kqbprq4vbmeol5/wolizutogimobuxamorutuseg.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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