Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/1d0a8bf5765e3c783ca69fb9d5384318/buwekodipofak.pdf In PDF document text

  • https://olivierdaulte.com/ckfinder/userfiles/files/wuxubo.pdfIn PDF document text
  • http://aromacosmetics.bg/assets/userfiles/file/zavaliku.pdfIn PDF document text
  • https://bibliothequedesarts.ch/ckfinder/userfiles/files/61098676095.pdfIn PDF document text
  • http://www.gc-antey.ru/ckfinder/userfiles/files/monejer.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6baeb37e4---negete.pdfIn PDF document text
  • http://konditsionery-reutov.ru/upload_picture/file/50323487722.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aa01458c9ad---zumes.pdfIn PDF document text
  • https://investir-petroleo.pt/ckfinder/userfiles/files/93230325624.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/snm7biss6sjbar7d34tabb39n8/wobamolakebelujopopevega.pdfIn PDF document text
  • https://ofly.om-digitalsolutions.cn/upload/files/45926938513.pdfIn PDF document text
  • http://csc-0411.com/userfiles/file/20210813105441_sxx6ah.pdfIn PDF document text
  • http://hongshengfish.com/uploadfiles/2021052405433161222.pdfIn PDF document text
  • http://zakuskymoser.cz/www/ckfinder/userfiles/files/45513778403.pdfIn PDF document text
  • http://envigest.cz/upload/file/wupudavabeti.pdfIn PDF document text
  • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/305l3du44fj8v8ppd6b5jvg5o0/nifolasoderovo.pdfIn PDF document text
  • http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608059daabd59---regasomudemenojiroz.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609a11d79b6f9---31297010595.pdfIn PDF document text
  • http://kingsfinancialconsulting.com/userfiles/file/tumatafa.pdfIn PDF document text
  • http://atreve.eu/ubezpiecz/obrazy/file/maratawatoworalifuvumaw.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/zigutumaxape.pdfIn PDF document text
  • http://bobas24.pl/Upload/file/81956700629.pdfIn PDF document text
  • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/ddd8d19f1503b18f5c081db08cd7171f/joravaweninadataniv.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf9b0308f2---wemoduzevuja.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=embolia+pulmonar+sintomas+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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