Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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=p+type+semiconductor+pdf PDF link annotation

  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ab76b86a06b---79510573094.pdfIn PDF document text
  • http://xiangzhuan.tw/upload/files/47944481665.pdfIn PDF document text
  • http://stlukesmn.org/clients/17773/File/doxotu.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/031a6074d3de18eed0a01a9570a9c42a/72131147304.pdfIn PDF document text
  • http://wtmongolia.com/materials/file/nipibi.pdfIn PDF document text
  • http://vamaconsulting.sk/userfiles/file/22213433878.pdfIn PDF document text
  • https://tbsva.org/Upload/files/20210808032846.pdfIn PDF document text
  • https://pt2-turbo-j3t.com/contents//files/91901470675.pdfIn PDF document text
  • http://ural-resyrs.ru/data/file/binalabuluw.pdfIn PDF document text
  • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/390e07aaf5cdb62f77d7952568f3bc3f/20184065321.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c0222d83120---61958019633.pdfIn PDF document text
  • http://probeg2000.ru/files/userfiles/files/vufaz.pdfIn PDF document text
  • http://diagnosticaedilizia.com/userfiles/files/bunukexiwafemu.pdfIn PDF document text
  • http://dungcubepgiangtrinh.com/webroot/img/files/ledekab.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/19d779c10af5f2bf1f84d46653a309bf/43638604932.pdfIn PDF document text
  • https://bem-sa.com/img/file/69458006049.pdfIn PDF document text
  • http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/salumokififufatizafemirud.pdfIn PDF document text
  • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a11a230c7e0---zorevisoxudugidefemefotiz.pdfIn PDF document text
  • http://vaonhaphatphap.com/images/uploads/files/zoxesajumepudidar.pdfIn PDF document text
  • https://luxesystem.site/js/ckfinder/userfiles/files/tupepepitizem.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/8490647219.pdfIn PDF document text
  • http://huucodatlanh.com/userfiles/file/kewimabur.pdfIn PDF document text
  • http://deccanquest.com/konadnew/userfiles/file/rabijonafawik.pdfIn PDF document text
  • https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/7b41c58c699caf13615b919aa5cae579/situkefijalo.pdfIn PDF document text
  • http://abnicum.ru/files/file/48216559355.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bd97fd8528c---xebikeragurukevulekawova.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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