Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://infrive.ru/uplcv?utm_term=preposition+worksheet+esl+pdf PDF link annotation

  • https://www.larche-de-jules.fr/ckfinder/userfiles/files/33921802007.pdfIn PDF document text
  • https://total-sport.pl/img/upload/files/1643888135.pdfIn PDF document text
  • https://acavacecio.it/userfiles/files/37819236412.pdfIn PDF document text
  • http://webdulich.com/js/ckfinder/userfiles/files/mojozupuf.pdfIn PDF document text
  • http://gymostrov.org/gymostrov/userfiles/file/40662030505.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608105419c2cd---ludiwipogilalorewaw.pdfIn PDF document text
  • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/gusuvudutarokapefame.pdfIn PDF document text
  • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//xigosanan.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16084372bcfbf8---kisife.pdfIn PDF document text
  • https://cam-ceeds.org/ckfinder/userfiles/files/gebonuzek.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee19e2476a5---21040668724.pdfIn PDF document text
  • http://ohappy.org/userData/board/file/samezamefaresadisamabut.pdfIn PDF document text
  • http://nutronicltd.com/userfiles/file/xaburafibu.pdfIn PDF document text
  • http://yalciniskele.com/imgup/file/zaxifo.pdfIn PDF document text
  • http://yoron.net/up/files/wewegufulu.pdfIn PDF document text
  • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/202161672152661.pdfIn PDF document text
  • http://kovospm.cz/fotky/file/gatibizokobovog.pdfIn PDF document text
  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1609c032263b95---37671178679.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091ba8a24ef4---7596578544.pdfIn PDF document text
  • https://unitytradefze.com/ckfinder/userfiles/files/milurosugumujaguwim.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16085d53d5634e---dugovigus.pdfIn PDF document text
  • https://clickbox.ro/images/file/77479649670.pdfIn PDF document text
  • http://womenshealthcarenp.com/clients/2/29/29a32d4da59f0b4eaa4573e1354aeabc/File/kuziriruluwux.pdfIn PDF document text
  • http://bud-drog.pl/userfiles/file/pulirisu.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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