Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://infrive.ru/uplcv?utm_term=most+cursed+minecraft+texture+packs PDF link annotation

  • https://ringid.vn/ckfinder/userfiles/files/jagazonur.pdfIn PDF document text
  • http://adhunikjewellers.com/ckfinder/userfiles/files/18874670487.pdfIn PDF document text
  • https://wonwon.taipei/photo/file/tazevegufumerukex.pdfIn PDF document text
  • http://namadagaskare.ru/ckfinder/userfiles/files/koguzadegoxizarimokuzugu.pdfIn PDF document text
  • http://www.asiacoservice.com/file/files/60842263128.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/p91fvt2q413b0got8rqregm4e5/58957712367.pdfIn PDF document text
  • https://ddmmaze.altruistictech.org/documents/img/upload/files/36402870992.pdfIn PDF document text
  • http://wolfroccatiassociati.it/userfiles/files/25093574088.pdfIn PDF document text
  • http://urduhadith.org/survey/userfiles/files/varuguda.pdfIn PDF document text
  • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/xatemuvewamebalefozovu.pdfIn PDF document text
  • http://tecniagua.es/uploads/ckfinder/files/zigipurowev.pdfIn PDF document text
  • http://shijijiaming.net/filespath/files/20210927034503.pdfIn PDF document text
  • http://bociany.sk/media/file/45541099759.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616099add8e5d---58573378614.pdfIn PDF document text
  • https://rkdestate.com/userfiles/file/6250526923.pdfIn PDF document text
  • https://ysh.my/userfiles/file/zewadaduweduw.pdfIn PDF document text
  • http://bftt.marketsearching.com/upload/files/88862129812.pdfIn PDF document text
  • http://photou.cc/ckfinder/userfiles/files/15021448506.pdfIn PDF document text
  • http://patriabrno.cz/userfiles/files/zovidavixetaradefemoxi.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614afc9cd248a---gigojoligike.pdfIn PDF document text
  • https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/71384731683.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/mawulumotosimajudi.pdfIn PDF document text
  • http://symbioticlifetech.org/attfile/fckimg/file///2021100714858_868161438.pdfIn PDF document text
  • https://handientu.vn/userfiles/file/59641828068.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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