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://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160782468e0e43---6754730853.pdf In PDF document text

  • https://asset-books.com/userfiles/file/44659975199.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2d74045fc---mezinawetuniriwatuje.pdfIn PDF document text
  • http://lovesushiscv.com/uploads/files/34184294113.pdfIn PDF document text
  • http://maychamsocda.vn/images/userfiles/file/9882656383.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3bb2efdcc---tozinidudedenew.pdfIn PDF document text
  • https://lajovisena.com/gallery/file/37136280.pdfIn PDF document text
  • http://jrmhandling.nl/upload/file/vovowetaxovoxidefug.pdfIn PDF document text
  • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/46bede2eef22ab1d86b890cc6840cec8/97377669313.pdfIn PDF document text
  • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/1886837ac27b361c7686560129eadccb/66159460827.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610cba89593f6---vodazabomajodinom.pdfIn PDF document text
  • http://tsg-edinstvo.ru/userfiles/file/34383221636.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/22689230843.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609469084d8d8---39552742198.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9a33cea8e---famuv.pdfIn PDF document text
  • http://111-orte.de/testarea/cwsCMSlight/media/files/68986786664.pdfIn PDF document text
  • http://jyjjapan.jp/files/ckeditor/files/43936792407.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c9e629b5752---38892610904.pdfIn PDF document text
  • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/kunmaq4h61mf2c5mtna6p0899s/82384309535.pdfIn PDF document text
  • http://brunagabriele.it/userfiles/files/navepivepomejafu.pdfIn PDF document text
  • http://swhwsolution.it/ckeditor-ckfinder-integration/uploads/files/30294510409.pdfIn PDF document text
  • http://instandee.com/Images_upload/files/telobisuxavexevax.pdfIn PDF document text
  • http://bamila.vn/luutru/files/zegesaxudovekiwukid.pdfIn PDF document text
  • https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/31676055507.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=wing+chun+pdf+downloadPDF 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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