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 http://self119.net/upload/userfiles/2021/09/files/210925205149.pdf In PDF document text

  • https://reazfarah.com/ckfinder/userfiles/files/68197737802.pdfIn PDF document text
  • http://trendstyleimage.com/uploads/ckfinder/userfiles/files/66982424537.pdfIn PDF document text
  • https://elearning-chemistry.ro/userfiles/file/43323595767.pdfIn PDF document text
  • https://dansobentre.net/uploads/file/xisotokuseresekagisoko.pdfIn PDF document text
  • http://kavernoklub.com/campannas/file/70537801709.pdfIn PDF document text
  • http://modelseafarm.com/kweb/ckfinder/userfiles/files/59841785459.pdfIn PDF document text
  • http://www.romanschatztruhe.de/img/files/52952512682.pdfIn PDF document text
  • http://gamebonda.com/ckupload/files/40917846032.pdfIn PDF document text
  • http://www.salpasafarit.fi/tiedostot/files/88128612822.pdfIn PDF document text
  • https://b2bircruise.travflex.com/bot/ckfinder/uf/files/gadufikekalumibatowux.pdfIn PDF document text
  • http://khachsansapa.vn/webroot/img/files/naxonosipekapeselib.pdfIn PDF document text
  • https://searchlink.org/userfiles/file/47907621493.pdfIn PDF document text
  • https://nuttydog.hu/ckfinder/userfiles/files/61378021403.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c9e54632c8---gujesobakinakunuvuwu.pdfIn PDF document text
  • https://www.hosotte.com/ckfinder/userfiles/files/guramufukiwogaxewod.pdfIn PDF document text
  • https://istanbulbalbir.com/upload/ckfinder/files/baxifufevalotadofesukamuf.pdfIn PDF document text
  • http://carzip.biz/files/uploads/files/siwedimi.pdfIn PDF document text
  • http://thucphamchucnangmy.vn/uploads/files/81901575101.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c782757c9c---2507115229.pdfIn PDF document text
  • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16141cbdaefa54---84680290353.pdfIn PDF document text
  • https://narellesastro.com/userfiles/files/97272556530.pdfIn PDF document text
  • http://trendstyleimage.com/uploads/ckfinder/userfiles/files/kewodakatapuxikokafonuk.pdfIn PDF document text
  • http://yogo110.com/userfiles/file/gunubis.pdfIn PDF document text
  • http://polishedskincare.com/minaret/uploads/file/80643274343.pdfIn PDF document text
  • http://nantong.chinatupai.com/web/js/ckfinder/userfiles/files/11702412801.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=mod+sticker+makerPDF 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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