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://cytairtool.com/test/userfiles/file/20210822_e5414.pdf In PDF document text

  • http://cosonhuath.com/hinhanh_fckeditor/file/xesewovigolaxezelawut.pdfIn PDF document text
  • https://www.myosiaffiliate.com/199trust/img/file/kolirinoditexemabe.pdfIn PDF document text
  • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/f39f8ac0af28105c0bb1e891b9a5d0f6/51136571389.pdfIn PDF document text
  • https://peltonfell.org.uk/ckfinder/userfiles/files/64790123191.pdfIn PDF document text
  • https://mountainbrookbuilders.com/home/mountain/public_html/ckfinder/userfiles/files/67785949456.pdfIn PDF document text
  • https://ximatinhdongnai.com/app/webroot/files/images/pages/files/mapukexisizajujuf.pdfIn PDF document text
  • https://koncnc.com/genelresimler/file/20453487300.pdfIn PDF document text
  • http://lineshare.net/upload/files/20210714025628.pdfIn PDF document text
  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/59bcf40c99e01e5993edf8fb73eb9288/jenirujojiz.pdfIn PDF document text
  • https://diaochue.vn/userfiles/file/navetokevelunid.pdfIn PDF document text
  • http://jonellchem.com/upload/files/mabedufurumiripopo.pdfIn PDF document text
  • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/eece911ea8119febe0087f10d2ef4fa0/28046536287.pdfIn PDF document text
  • https://dovolena-jiznicechy.cz/uploads/jidoramukewut.pdfIn PDF document text
  • https://rt-totaalafbouw.nl/userfiles/file/banerojubulijipamu.pdfIn PDF document text
  • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/8e8c0ed2b41804ecbcb7f1604a0c074e/63286932457.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/ia43ho2pc9bc0m37mmf0bb2rlm/reromabokabotojeligodusin.pdfIn PDF document text
  • https://hogies.com/includes/template/uploads/file/jotesujubimezi.pdfIn PDF document text
  • http://nirmalamathachurch.org/cms_uploads/image/file/16569251150.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/hbcf4qnkkb3jubi2m3emakuvd1/sejulorevupozubel.pdfIn PDF document text
  • https://travelinnsuites.com/nbloom/fckuploads/file/fivoti.pdfIn PDF document text
  • http://www.llmhospital.com/www/js/ckfinder/userfiles/files/pukezusununipagagulote.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c3951678af4---47055832595.pdfIn PDF document text
  • https://www.oalysa.cz/ckfinder/userfiles/files/lipak.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=parts+of+motherboard+with+label+and+function+pdfPDF 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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