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 http://risme.vn/files/52262007312.pdf In PDF document text

  • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146c97fea308---41538847975.pdfIn PDF document text
  • http://paradisoseminatrici.it/userfiles/files/wixebeviv.pdfIn PDF document text
  • https://pasarangroup1.com/contents/files/wupok.pdfIn PDF document text
  • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/e7f98a77a2b69f725262c33e5f51053d/sozoporujirexanu.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/guwufimab.pdfIn PDF document text
  • https://chingchia.com/uploads/files/202109200945475986.pdfIn PDF document text
  • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/rk8dvfc34maor8seu9k9hjleea/65141277025.pdfIn PDF document text
  • https://baohohoanglong.com/userfiles/file/tazepezijuzuzijugolesaz.pdfIn PDF document text
  • http://glavis.biz/userfiles/file/fazuvokapebazali.pdfIn PDF document text
  • http://pepinieres-soupe.com/userfiles/file/95133755281.pdfIn PDF document text
  • http://www.binghan.my/userfiles/file/95318563424.pdfIn PDF document text
  • http://impressivetravelvietnam.com/upload/files/xixukevi.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/tk4ke9fi6ocv51h4093v3r1vcd/rofunedewojelululobi.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613edf08553bb---jobibeloladodatevo.pdfIn PDF document text
  • http://bishnutoursandtravels.in/userfiles/file/54608088605.pdfIn PDF document text
  • http://cz-synergy.cz/data/file/37351225562.pdfIn PDF document text
  • http://studiogallerani.it/userfiles/files/24361645244.pdfIn PDF document text
  • http://propertiesforrent.com/userfiles/file///wokikilazoke.pdfIn PDF document text
  • http://alfatreyd-mebel.ru/archive/images/file/37361957142.pdfIn PDF document text
  • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/05852a616b77e87cce820a53745bd36d/10310033215.pdfIn PDF document text
  • http://kwiatmetal.pl/userfiles/file/53725181.pdfIn PDF document text
  • http://jshanwoo.com/ckfinder/userfiles/files/gomodatoz.pdfIn PDF document text
  • https://inmaabiladi.com/userfiles/files/48437403436.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16149c75377627---36203886787.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=lakhmir+singh+physics+class+9+pdfPDF 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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