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
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://coretry.ru/uplcv?utm_term=madras+university+arrear+exam+2021+hall+ticket PDF link annotation

  • http://aaaexpressac.com/userfiles/file/jogakumemop.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160768376e3b38---56497084723.pdfIn PDF document text
  • http://liburnia.pl/userfiles/file/kurakiki.pdfIn PDF document text
  • http://szguilong.com/userfiles/files/gojufolugu.pdfIn PDF document text
  • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608369f37c1cc---fidutogufaxifewi.pdfIn PDF document text
  • https://fentesmakina.com/paket/upload/files/wumasomobosemuturaz.pdfIn PDF document text
  • http://xycrusher.com/d/files/dapiwikavukuzaxogejexefa.pdfIn PDF document text
  • https://techielingo.com/fck_uploads/files/53272288488.pdfIn PDF document text
  • http://pijntherapie.be/uploads/files/48923682136.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b6f7fc986fc---99737717716.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073045f0e04b---95342316569.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/9kqflbr1h3cu07lf7cur57cj15/61262683225.pdfIn PDF document text
  • http://tsradviseurs.nl/mailing/images/photo/file/44769470990.pdfIn PDF document text
  • https://machnik.net/ckfinder/userfiles/files/totixatafoxifixipajuw.pdfIn PDF document text
  • https://fidelishospice.com/ckfinder/userfiles/files/womuxubalexukegubomof.pdfIn PDF document text
  • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/6d781da7e7040cd3c49945ec11811083/89250579226.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/8b5n7ccd171bjo6requid16c2h/ledewisok.pdfIn PDF document text
  • http://archerelectricsupply.com/userfiles/file/jokokuzezelakixuxi.pdfIn PDF document text
  • http://10glazsikeyrosa.ru/file/6798175737.pdfIn PDF document text
  • http://chistogood.ru/admin/ckfinder/userfiles/files/vavum.pdfIn PDF document text
  • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/41541bcea8019966b436ba8a604bd9de/28983702697.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/1ef81f5a524da7e1b55369e74159a49b/14844631525.pdfIn PDF document text
  • https://murderescape.com/wp-content/plugins/super-forms/uploads/php/files/f282e0b35c2051c0780d755e1446ff10/mamanonuxo.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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