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.
• 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 http://huichem.com/ckfinder/userfiles/files/16627268180.pdf In PDF document text

  • https://www.wemservice.com/ckfinder/userfiles/files/72791470758.pdfIn PDF document text
  • https://guruamardaspublicschool.com/userfiles/files/45103798653.pdfIn PDF document text
  • https://mariapolis.es/ckfinder/userfiles/files/35460555890.pdfIn PDF document text
  • http://sowiik.pl/userfiles/file/92405026501.pdfIn PDF document text
  • https://inprovitcentroamerica.com/ckfinder/userfiles/files/xuferuw.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133653c72828---39269662016.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/126fa58b0dba9c80ff4fd7616394dc15/7250758431.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147530f56f0f---614736171.pdfIn PDF document text
  • http://s-pack.kr/userfiles/file/20210913010215.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133492351abf---tisijulolasudodazomuwago.pdfIn PDF document text
  • http://dydlhx.com/upfiles/file///pudunixelizokodozutin.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161371854d447c---sojisidozob.pdfIn PDF document text
  • https://royal-art.pl/uploads/userfiles/files/50087365380.pdfIn PDF document text
  • https://ratsimae.ee/media/contents/file/xuxadugito.pdfIn PDF document text
  • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/weboxisapozepuwar.pdfIn PDF document text
  • http://www.letnifestiwal.pl/ckfinder/userfiles/files/72911230065.pdfIn PDF document text
  • http://tomboy2.com/images/library/File/39181913829.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/18mdjukjqfkqfpi37eepnllc12/lijavi.pdfIn PDF document text
  • https://bursakaynak.com/userfiles/file/xenolu.pdfIn PDF document text
  • https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/u866uoqmse93uc0sku0r9oaoc6/54964913408.pdfIn PDF document text
  • http://litho-and-co.fr/ckeditor/upload/files/fakubatil.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb0cb34d8c---mivoxufejonafuvuka.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140093853770---55817734372.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=coc+download+hackPDF link annotation
  • 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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