Malicious PDF — malware analysis report

Heuristics 6

• 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 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://study-go.info/wp-content/plugins/super-forms/uploads/php/files/e7ee461c2d90d0b164d02be8b4dba2cf/xutulo.pdf In PDF document text

  • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/89967cc954b60a2b87489084b872f7fc/38169299656.pdfIn PDF document text
  • https://ta-taiwan.com/app/webroot/userfiles/files/kurorimi.pdfIn PDF document text
  • https://stop-remont.ru/ckfinder/userfiles/files/lawagolijudugufikedaguwa.pdfIn PDF document text
  • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606d8491702dd---zifizudizug.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4096815a9---46605501028.pdfIn PDF document text
  • http://beiks.info/public/file/nurezufarotexu.pdfIn PDF document text
  • http://vankouwenenmastop.nl/UserFiles/file/75907300165.pdfIn PDF document text
  • https://ddshower.com/ckfinder/userfiles/files/segafarunopamirarozes.pdfIn PDF document text
  • https://zhbiotech.com/CKEdit/upload/files/vuzopazevumam.pdfIn PDF document text
  • http://mikailang.net/userfiles/file/20210512023615_1544617454.pdfIn PDF document text
  • http://dtpokebar.com/uploads/files/64986134223.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/9ggcjveobmdps2mcc8bgjf7rs4/kepaxe.pdfIn PDF document text
  • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/1eb2cf6824e65e80f7c7cba87ad5c0cd/35304785849.pdfIn PDF document text
  • http://csc0851.com/userfiles/file/20210611154609_9rp8kw.pdfIn PDF document text
  • https://webmenuplus.com/images/file/balavasijitemur.pdfIn PDF document text
  • http://hayatteknoloji.com/webimage/file/kiwavasofozupiguvusodawo.pdfIn PDF document text
  • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/jldf61f1so80qn7rqe71qqal49/66035948396.pdfIn PDF document text
  • http://envigest.cz/upload/file/78865922839.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b75440755---gugemezamorezaripazisujo.pdfIn PDF document text
  • http://eksan-ltd.com/userfiles/file/44210391279.pdfIn PDF document text
  • http://hilltop1976.com/clients/24685/File/79907916253.pdfIn PDF document text
  • http://www.golfusa.be/userfiles/files/gilotav.pdfIn PDF document text
  • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/920a0a7182a83c0cf851e51233c957be/15036560300.pdfIn PDF document text
  • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dc5962eeaca---97013057139.pdfIn PDF document text
  • http://josephlillianmorrisfamily.com/clients/59960/File/28417770844.pdfIn PDF document text
  • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/654bdf6bae5f84b1f7407fb37cbbaccb/15975928803.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=in+writing+the+declaration+of+independence+thomas+jefferson+was+influenced+by+john+locke%27s+idea+ofPDF 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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