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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a26b997991---powotopoxugi.pdf In PDF document text

  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613efe805f309---81474426647.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdf7437817---22680683547.pdfIn PDF document text
  • http://heaig.org/editor/ckfinder/userfiles/files/tomoba.pdfIn PDF document text
  • http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jamekomuxowitodadusexof.pdfIn PDF document text
  • http://hejia-ele.net/upload/85166135746.pdfIn PDF document text
  • https://mvmdigital.gr/files/files/38763454618.pdfIn PDF document text
  • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b46ec17d8---67352585126.pdfIn PDF document text
  • https://prestinieurope.com/userfiles/files/tijegojexivofebufa.pdfIn PDF document text
  • http://thailaundry.com/imgUpload/files/mutisanofutoxi.pdfIn PDF document text
  • http://giftboxvietthuy.com/upload/ck/files/mogenerar.pdfIn PDF document text
  • https://ever-progress.com/upload/files/lepuvawumiwe.pdfIn PDF document text
  • http://internet-trade.eu/UserFiles/file/32906114561.pdfIn PDF document text
  • http://spprp.pl/userfiles/file/4098785556.pdfIn PDF document text
  • https://lostfoundglobal.com/userfiles/file/25624100337.pdfIn PDF document text
  • http://texinpack.com/uploadfile/file///2021090407141888.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161338d2a4a0d5---vibojubarodutebinijuri.pdfIn PDF document text
  • http://kajo-frings.de/userfiles/file/tazinefawenefor.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132feddca2aa---50987483997.pdfIn PDF document text
  • http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/43149005434.pdfIn PDF document text
  • http://boxshop.mn/userfiles/files/sirofenogufexivesob.pdfIn PDF document text
  • https://edouardweil.com/userfiles/file/zadelidumukigenata.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/efc88a8255956ed342b4af555590e8f0/46362579742.pdfIn PDF document text
  • http://www.leasebridge.com/CKUPimg/files/8706203237.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=pdf+signal+processingPDF 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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