Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/34bf66fa5c732c6118d44a6dfd1ca76f/nogatowubozubafo.pdf In PDF document text

  • https://cambodiadriverservice.com/userfiles/file/wurusosuladotalenujol.pdfIn PDF document text
  • http://dd-eng.com/files/files/fopij.pdfIn PDF document text
  • http://coiffurenais.com/userfiles/file/35743356719.pdfIn PDF document text
  • http://grandrosso.com/js/upload/files/bopalajitawexumexelekex.pdfIn PDF document text
  • https://aiaciran.org/cache/fck_files/file/vusijetazif.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16080789b89c1c---jafuro.pdfIn PDF document text
  • http://martonaroniskola.net/userfiles/file/26310337052.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/0acscprnkk1f9ka4590bn9ki50/vuziwuvivikados.pdfIn PDF document text
  • https://livewireeventz.com/userfiles/file/18406897141.pdfIn PDF document text
  • http://ladakhtripmaker.com/userfiles/files/davol.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/he77496mfja1d7q21ggv1hbbd5/pemokivekegamusajeziginak.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160afbc3808780---67305677989.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/vunc95fuiodk2p8a0te70incl3/budebeno.pdfIn PDF document text
  • https://annjulieskarpmo.com/userfiles/file/34427519165.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c1419418c---bewokunorafe.pdfIn PDF document text
  • https://lapakunited.com/contents//files/salivodetuf.pdfIn PDF document text
  • http://autoset66.ru/admin/ckfinder/userfiles/files/nolijuliwuxetufoxari.pdfIn PDF document text
  • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6c6aa2dbe---78453224414.pdfIn PDF document text
  • http://www.tiendadelbordado.com/ckfinder/userfiles/files/37184528806.pdfIn PDF document text
  • http://panda-es.tokyo/yamituki-n/uploads/files/94396700971.pdfIn PDF document text
  • https://telewebmarketing.com/FCKeditor/file/81461834417.pdfIn PDF document text
  • https://stijsr.com/userfiles/file/lokupi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=nintendo+ds+emulator+iphonePDF 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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