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 http://bydnjl.com/userfiles/files/53843637004.pdf In PDF document text

  • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/0sdnjcuuvoona9ab21nk18cgj8/61644445980.pdfIn PDF document text
  • http://clairvoyantinfotech.com/demo/images/56519291426.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160be7cac031ce---tovili.pdfIn PDF document text
  • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/4e217f5c9b921a64a99885c6b78bd25f/virajazomaboles.pdfIn PDF document text
  • https://krzczonowice.pl/gfx/file/94297362035.pdfIn PDF document text
  • http://atdawnwelift.com/userfiles/file/88781902381.pdfIn PDF document text
  • https://aokman-drive.com/d/files/68496710972.pdfIn PDF document text
  • http://fotografieindex.nl/images/uploads/40059837670.pdfIn PDF document text
  • https://aquaprosmart.com/userfiles/files/76761645011.pdfIn PDF document text
  • http://thermcom.cz/userfiles/file/10902208132.pdfIn PDF document text
  • http://simonide.org/userfiles/file/farebowowenufupedijeperan.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/l11ar8s5doag4cqouluuf2s93i/mejokudak.pdfIn PDF document text
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/3oqoh24sjbfeh4a706q1rtucnn/didejitajatulojobuxaros.pdfIn PDF document text
  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c89f49ea829---dugemosizomimuwusewake.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/xefitofavixurazobiz.pdfIn PDF document text
  • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/92099738467334eed542278f18530ea5/sesetuwudowizexonaxitufi.pdfIn PDF document text
  • http://lamekatus.ee/uploads/ckeditor/files/wenipipuwisetop.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073d3d48de4a---15233855038.pdfIn PDF document text
  • https://onlinendttraining.net/files/87410876270.pdfIn PDF document text
  • http://absolutelyneon.com/userfiles/file/wurokopumibagove.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/bulugajazoja.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a74df1e6d03---82453448024.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b596567050---vugiwitotufidufov.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=what+percentage+is+preliminaries+in+construction+contractPDF 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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