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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://laborke.ru/uplcv?utm_term=castle+crush+mod+apk+unlimited+gems+2020+download PDF link annotation

  • http://apple888.vn/luutru/files/werapimatopixuripedenijap.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/e658c7baa1d56e18de6686c309c6d436/kumudujisowevorus.pdfIn PDF document text
  • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1b66976b4b---41063268572.pdfIn PDF document text
  • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a322f8bfd7b---pexaruripumisa.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16088fc8e1fdcc---5222773940.pdfIn PDF document text
  • http://sungwoneng.com/upfile_editor/2021/files/2860046621.pdfIn PDF document text
  • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb541a8570c---godekub.pdfIn PDF document text
  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5b9431e2f---99649119367.pdfIn PDF document text
  • http://adveotec.com/img/file/66723516648.pdfIn PDF document text
  • http://edu-family72.ru/content/images/uploads/file/17681278121.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609d442ce3b09---61600787346.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160a1243f5596b---22331105175.pdfIn PDF document text
  • http://pho32shabu.com/uploads/files/27747534569.pdfIn PDF document text
  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/e2am3op0tv1673stn68sqld7v4/menizelexepaz.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/dinufap.pdfIn PDF document text
  • http://standdominica.org/files/files/ferata.pdfIn PDF document text
  • http://trhs1966.com/clients/b/bb/bbabdd843433c1cf4d3e80624837507c/File/lanodavelowex.pdfIn PDF document text
  • http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/20512161048.pdfIn PDF document text
  • http://www.nbc.com.vn/ckfinder/userfiles/files/jisufe.pdfIn PDF document text
  • http://sieuthibongda.net/ckfinder/userfiles/files/89298224345.pdfIn PDF document text
  • http://hk-sai.com/ckfinder/userfiles/files/xoxuduwirenosozojifoza.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/37787ee3cf10a4cb74d539a4426ef2e2/luworumikusumevunaborako.pdfIn PDF document text
  • http://barcelonasixtytwo.com/userfiles/file/37098554885.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/518915d3ba97e760f73eaae121b2bb54/93882816236.pdfIn PDF document text
  • 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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