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
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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://wojczak.pl/userfiles/file/82123931077.pdf In PDF document text

  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/vibax.pdfIn PDF document text
  • http://fsf-vastroad.com/userfiles/file/9102673140.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16141278ba64ae---37845950246.pdfIn PDF document text
  • https://charming-dc.com/uploads/files/202109052309188553.pdfIn PDF document text
  • http://cayxaotamphan.net/userfiles/image/file/letilozade.pdfIn PDF document text
  • http://solamsys.com/userData/board/file/97953494942.pdfIn PDF document text
  • https://patidarpalanpur.com/web/k/main_admin/ckfinder/userfiles/files/36177799126.pdfIn PDF document text
  • http://iviltra.lt/images/files/2822339403.pdfIn PDF document text
  • http://www.520amis.com/upload/files/76258919632.pdfIn PDF document text
  • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/a6d7c31725afc62e1d42d9237dde7882/4646512215.pdfIn PDF document text
  • http://emannsltd.com/userfiles/vabotatawokunufezusix.pdfIn PDF document text
  • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/dcb5d0c27b91b90c8b4fc39f5822ad88/lasegemerejaz.pdfIn PDF document text
  • http://swhos.com/upload/files/rezozopeguza.pdfIn PDF document text
  • http://ifaistos.reality.gr/~triantaf/images/file/vojavafapovavon.pdfIn PDF document text
  • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/mavagivifigaxa.pdfIn PDF document text
  • http://xn--80aaaghhaztbcd1agjgbccsgfftf.xn--p1ai/pict/file/43481577162.pdfIn PDF document text
  • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/7c00621f67388e892bce56014b0193c1/27722348767.pdfIn PDF document text
  • http://agro-pasz.pl/ckfinder/userfiles/files/dosujupadutijogenuz.pdfIn PDF document text
  • http://hajnysport.cz/FCK_userfiles/file/600151809.pdfIn PDF document text
  • http://nutranghongngoc.com/media/ftp/file/72744418769.pdfIn PDF document text
  • https://abisspaandboutique.com/nbloom/fckuploads/file/zobirifemud.pdfIn PDF document text
  • http://hamdannepal.com/userfiles/file/newonadotedirivujataguful.pdfIn PDF document text
  • http://yigang-lin.com/uploads/files/202109060247153299.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210914000657543655z4efkg.pdfIn PDF document text
  • https://lacgl.org/upload/editor/file/53135471729.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=mi+gift+card+number+and+pin+generatorPDF 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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