Malicious PDF — malware analysis report

Heuristics 8

• 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 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://ketchas.ru/uplcv?utm_term=dragon+ball+episodes+total PDF link annotation

  • http://ryyw.com/upload/files/2021/09/202109040606383831.pdfIn PDF document text
  • http://nawaress.com/webroot/js/ckfinder/userfiles/files/xasirugefam.pdfIn PDF document text
  • https://spirit-legend-enterprises.com/webroot/editor-uploads/files/pamanizazisuza.pdfIn PDF document text
  • http://dok-vo.ru/userfiles/file/8942524334.pdfIn PDF document text
  • http://abpjseah.news-read.com/upload/files/19776141423.pdfIn PDF document text
  • http://werkkledingverkoop.nl/images/docman/files/98633325432.pdfIn PDF document text
  • http://machi-tomo.xyz/js/ckfinder/userfiles/files/59770827023.pdfIn PDF document text
  • https://cantarefides.ro/admin/userfiles/file/9952545443.pdfIn PDF document text
  • https://biothiennam.com/media/ftp/file/gekipibe.pdfIn PDF document text
  • http://hangtatmj.com/userfiles/73086353556.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16134dd193985b---doninisowusaruvejujeguk.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/duvuxuzigegonepovetivet.pdfIn PDF document text
  • http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/83671866507.pdfIn PDF document text
  • http://ahzycw.com/upload_fck/file/2021-9-17/20210917135053202008.pdfIn PDF document text
  • https://colakcivi.com/userfiles/file/60508313774.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/161302f9602c1b---rerixopegepaxevasev.pdfIn PDF document text
  • https://confeccionesruiz.cl/UserFiles/File/49914142589.pdfIn PDF document text
  • http://aqcorth.specialty-match.com/upload/files/71934761211.pdfIn PDF document text
  • http://potlista.com/file/files/79198506903.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2b0e78b89---sajevamumemalekavofob.pdfIn PDF document text
  • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/161446e1972f0e---31104547031.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/e5393016bea19c050809ae5d7694dc17/zujapevezenare.pdfIn PDF document text
  • https://jetaime-shop.com/files/22462860744.pdfIn PDF document text
  • http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/18557429754.pdfIn PDF document text
  • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/a98e5221309b2f24e43aff9dd3f6c930/20607004989.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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