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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• 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://bertrandetgastineaudesigners.com/userfiles/file/85461270416.pdf In PDF document text

  • https://momentous-inst.com/uploads/image/files/33674024774.pdfIn PDF document text
  • http://andrelandberg.com/userfiles/file/sutizibagunufer.pdfIn PDF document text
  • https://cooperadora.grupocreartel.com/documentos/archivos/gilofase.pdfIn PDF document text
  • http://mentaplywood.com/images_upload/files/meniru.pdfIn PDF document text
  • http://mannadey.in/FCKeditor/file/47959183125.pdfIn PDF document text
  • http://computerdoki.hu/user/file/juzezufile.pdfIn PDF document text
  • http://kapelski.pl/userfiles/file/81553053687.pdfIn PDF document text
  • https://hygradeinsulators.com/images/uploads/file/82283430548.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1612f19b4501bf---83598642333.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f359a0e497---24624651567.pdfIn PDF document text
  • http://escrima-rlp.de/userfiles/file/xebarukojifodapolutug.pdfIn PDF document text
  • https://podimercrm.com/img/files/nojitumil.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/f6f7b19176e686c16a5d5d1e6d13caed/64909957694.pdfIn PDF document text
  • http://bpsstudio.hu/uploads/58412264206.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/38372279536.pdfIn PDF document text
  • http://transcash.com/ci/userfiles/files/kamumimatogemoxir.pdfIn PDF document text
  • http://lapmaymn.samdigroup.vn/app/webroot/upload/files/59885151533.pdfIn PDF document text
  • http://lawyergz.net/uploadfile/files/14064124286.pdfIn PDF document text
  • http://alfonsoguiggiarchitetto.it/userfiles/files/63303422684.pdfIn PDF document text
  • http://brezov-gaj.si/uporabnik/file/25843206062.pdfIn PDF document text
  • http://greenlivinggarden.com/htdocs/UserFiles/file/55846939920.pdfIn PDF document text
  • https://happen.webasl.com/userfiles/file/86252869181.pdfIn PDF document text
  • http://pcccphucvinh.com/upload/files/59889267005.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=watch+minari+online+freePDF 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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