Malicious PDF — malware analysis report

Heuristics 7

• 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 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://073741256.com/uploads/files/202109042114393397.pdf In PDF document text

  • http://rentappli.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/3594311838.pdfIn PDF document text
  • https://arvikabc.com/images/uploadedimages/file/13677799742.pdfIn PDF document text
  • http://automozg.by/upload/editor/files/74138257224.pdfIn PDF document text
  • http://kiavysocina.cz/UserFiles/File/vipanonunudadotegixusobi.pdfIn PDF document text
  • https://panoramamall.bg/ckeditor/ckfinder/userfiles/files/30018673617.pdfIn PDF document text
  • http://www.trisad.kz/ckfinder/userfiles/files/fugidavimezuma.pdfIn PDF document text
  • http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/75546076300.pdfIn PDF document text
  • https://inoxquochoang.com/app/webroot/files/images/pages/files/xilosamatupex.pdfIn PDF document text
  • http://www.kigimex.com.vn/ckfinder/userfiles/files/88984928366.pdfIn PDF document text
  • http://master-sign.ru/ckfinder/userfiles/files/remefidodi.pdfIn PDF document text
  • http://www.pilartangguh.com/file/36132568595.pdfIn PDF document text
  • http://embody.box8websites.com/ckfinder/userfiles/files/87131910209.pdfIn PDF document text
  • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f95aa62dc---kogar.pdfIn PDF document text
  • http://korealabels.com/ckfinder/userfiles/files/jikobomisegomazesuvexigi.pdfIn PDF document text
  • http://sllight.ru/design/img/upload/file/79192336994.pdfIn PDF document text
  • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/4092417942.pdfIn PDF document text
  • http://mirsistem.com/depo/sayfaresim/file/37080649923.pdfIn PDF document text
  • http://www.sospapa24.com/lib/ckfinder/imgupload/files/kizegokirixamumatudumutid.pdfIn PDF document text
  • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/1f84932487fd255f962c90a25263ddf7/63163376784.pdfIn PDF document text
  • http://dribblebar.pl/userfiles/file/52616407753.pdfIn PDF document text
  • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8bf7f915b0ab6dd8e2ac0fcf98d5ef29/lovudubivafex.pdfIn PDF document text
  • http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/74476202382.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/0b5919a8236e00f75ee4f0ab092d6474/31167551222.pdfIn PDF document text
  • https://www.ijdsir.com/ckfinder/userfiles/files/35417508898.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=army+io+gamesPDF 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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