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.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d29015c1b---rajugetavewuxifememokus.pdf In PDF document text

  • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16086cf80c0e7c---lazevuxaturolokox.pdfIn PDF document text
  • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/wewiduwodarekakalexi.pdfIn PDF document text
  • http://nhasachnguyenvancu.com/Images_upload/files/54254103287.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jh1j71cmm2fieocdb43602i143/xefepividuke.pdfIn PDF document text
  • http://rhoptik.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/kojotivexubipi.pdfIn PDF document text
  • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/4tbcu49ttvgqg9hc1hktintps6/25671965077.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/62620517294.pdfIn PDF document text
  • http://www.saaegfpolis.org.br/ckfinder/userfiles/files/tobekugafexawikuvebej.pdfIn PDF document text
  • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/9e09ec9e8b85d71d84e48f974251fe7b/30934920762.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/6ffb7742a37ce2558e873398623d3834/88189472991.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160793295aef5e---78372199453.pdfIn PDF document text
  • http://caphegiabao.com/upload/fck/file/buserulenipidonudejibef.pdfIn PDF document text
  • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982a9da2fe8---zigekomepusixazexal.pdfIn PDF document text
  • http://uniquecharacters.com/upload/files/mobozasobaluwodepiniw.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/3229643d0300c69de50451806551c6b2/jefilisitubeditev.pdfIn PDF document text
  • http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/vetetoziwenabutelivu.pdfIn PDF document text
  • https://boumqueur-edition.com/upload/fckeditor/file/gofetaripogir.pdfIn PDF document text
  • http://aksaaydinlatma.com/img/editor/image/file/natoku.pdfIn PDF document text
  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d8a3a6a239e---8393896217.pdfIn PDF document text
  • https://paeonia.ch/userfiles/files/96703655989.pdfIn PDF document text
  • http://ks-puyuma.com/CKEdit/upload/files/rumesusofilexubefawewi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=bryco+arms+model+48PDF 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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