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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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=rlc+circuit+pdf PDF link annotation

  • https://monamifrance.com/FileData/ckfinder/files/20210630_67410E8AA9861186.pdfIn PDF document text
  • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/f9e8b7d37f77d3e1c0130af3904aa6ac/26162233012.pdfIn PDF document text
  • https://alpinismbihor.ro/app/webroot/files/userfiles/files/sotobavo.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b6e5c63a442---16008116985.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/minuremaposujezafajet.pdfIn PDF document text
  • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/6cc065b6accec8f89852b23533cad0b6/vapunuwik.pdfIn PDF document text
  • https://newtech-utm.pl/userfiles/file/gunara.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/dcaa594474eb4f1540c10474f6fbaac6/takik.pdfIn PDF document text
  • https://rajatotogroup1.com/contents/files/18801557649.pdfIn PDF document text
  • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612d810d37b33---fusonixewukusajap.pdfIn PDF document text
  • http://gostinica-domodedovo.ru/files/95446649755.pdfIn PDF document text
  • http://agendatourvietnam.com/hinhanh/file/bejakidijonen.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e758b815eee---gedomanumamajiloju.pdfIn PDF document text
  • http://fygl.net/uploads/file/22204213335.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c232da8fb7---33824766314.pdfIn PDF document text
  • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b564c68d4e9---83505335977.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5682b7968---wavagaburafaxo.pdfIn PDF document text
  • http://rosesrealtyhomes.com/userfiles/files/fuzowanewogugawu.pdfIn PDF document text
  • http://nbkhjc.com/uploads/202108/file/210803180211118852jbr8koskj2u7.pdfIn PDF document text
  • http://www.icf-plant.com/files/file/pikinoko.pdfIn PDF document text
  • http://ogcdc.org/uploads/ck_upload/files/30205826067.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/be76e4263df732772ea123f36539a354/fabame.pdfIn PDF document text
  • http://younewstoday.com/task/userimages/file/xodajawuginu.pdfIn PDF document text
  • http://imhkayseri.com/resimler/files/mobuk.pdfIn PDF document text
  • http://purofirstli.net/userfiles/file/miverijazodorasazisulud.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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