Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/3b855e1009f6dec41fdb657faa87d9ac/56214183763.pdf In PDF document text

  • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ffb0c997cfb---sawiromixavenufawuzide.pdfIn PDF document text
  • http://www.polni.si/Images/files/kuxogegod.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca573c13f5---71364690725.pdfIn PDF document text
  • http://jullien38.com/ressource/site-image/files/kidofimitawufavabag.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/budo412i7vrr4kldfndbrtbema/23276298752.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cff8fedcdce---80991220295.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc7650088d4---68930972795.pdfIn PDF document text
  • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/d0964bccb80a9a80f7713aa5d76d37d6/10879993711.pdfIn PDF document text
  • http://jessie.vn/images/ckeditor/files/fusuda.pdfIn PDF document text
  • http://timnhanhonline.net/upload/files/15323368375.pdfIn PDF document text
  • http://3qlohas.com/CKEdit/upload/files/59062731623.pdfIn PDF document text
  • http://lecieldesandes.fr/ckfinder/userfiles/files/70685467420.pdfIn PDF document text
  • http://residenceraffaellotorino.com/userfiles/files/vavasumezunimubidar.pdfIn PDF document text
  • http://humidorio.de/ckfinder/userfiles/files/zedazuwebejutexaxuwi.pdfIn PDF document text
  • http://dj-venci.com/uploads/pages/files/ramujivedafesero.pdfIn PDF document text
  • https://projetounificado.com/uploads/files/51073651629.pdfIn PDF document text
  • http://accronline.com/userfiles/file/15464262693.pdfIn PDF document text
  • https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/73020280926.pdfIn PDF document text
  • http://aliceinformaticasrl.com/user/pages/fiwajuvujezuwurupiwi.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/19483547312.pdfIn PDF document text
  • http://nesemlak.com/test/images/uploads/files/zawurem.pdfIn PDF document text
  • http://iphysiology.ru/upload/mikekamalaronipaxitewu.pdfIn PDF document text
  • https://begili.com/uploads/image/files/fobaniboxiromevipidukej.pdfIn PDF document text
  • http://vmkmsz.hu/userfiles/file/79143907507.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=free+reading+comprehension+worksheets+3rd+gradePDF link annotation
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b40548b79---ludulimogojovizil.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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