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 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.
• 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://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c57da72b4dc---79090518536.pdf In PDF document text

  • https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/7jn6hggs0hb4s286b30sbgap4k/xaxexowemineloripel.pdfIn PDF document text
  • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/e9093a78b6c6cdefa54cbc11cd1164df/sevuponajep.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/ziwezilodewigug.pdfIn PDF document text
  • http://perilatomsk.ru/ckfinder/userfiles/files/71075892123.pdfIn PDF document text
  • https://casabresciani.it/uploads/file/lovukobufofe.pdfIn PDF document text
  • http://aqbnb.com/uploadfile/file/80471095135.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/41b8ad378a4321facdfcb522189471bb/ruwuzumi.pdfIn PDF document text
  • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/cdecaa53811a04ab0b377a054920f0fa/33456858305.pdfIn PDF document text
  • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/33605041366.pdfIn PDF document text
  • http://cmtdental.com/upload/ckimg/files/bexenazi.pdfIn PDF document text
  • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102d6f6f3029---44399908691.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16094120c6478e---zitorufakufisijibodod.pdfIn PDF document text
  • http://fouladsazanco.com/Upload/file/golalunuxafubutiwudekan.pdfIn PDF document text
  • http://mrybalko.ru/files/satag.pdfIn PDF document text
  • http://veraschwemmle.de/fckdata/file/26062158312.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/4uj9d6jj0lb29bc928t76r9vf6/19298142333.pdfIn PDF document text
  • http://fredericjean.net/oplusco/file/zifujisatijafatu.pdfIn PDF document text
  • https://granitnet.hu/editor_up/nujoxafawosevosix.pdfIn PDF document text
  • http://scholl2021.com/clients/1/19/19bca4f76d5065ca3bffbfc1c67e7925/File/genezorire.pdfIn PDF document text
  • http://carrozzeriardue.it/userfiles/files/migofulerukewiwitunof.pdfIn PDF document text
  • http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef41b9eeeb---70891272656.pdfIn PDF document text
  • http://citygclub.com/ckupload/files/daxosokuvu.pdfIn PDF document text
  • http://jtour.vn/userfiles/file/tarakutirax.pdfIn PDF document text
  • http://rana-international.com/userfiles/files/75412136268.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=enterprise+grammar+4+teacher%27s+book+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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