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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/vo8vvv37a50nke2kfgjnb7nds5/98668472490.pdf In PDF document text

  • http://ilkconstruction.com/Images/Media/files/sogiburakimu.pdfIn PDF document text
  • http://nutrisoilvietnam.com/upload/files/lusopola.pdfIn PDF document text
  • https://techson-cctv.com/upload/file/24347702321.pdfIn PDF document text
  • http://domario.ru/userfiles/file/muzemamemat.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079b515d0ba9---41619355386.pdfIn PDF document text
  • http://cuatudongnhatrang.com/uploads/files/8097279806.pdfIn PDF document text
  • https://planet-for-events.de/userfiles/file/51365587708.pdfIn PDF document text
  • http://rebornfair.com/FileData/ckfinder/files/20210801_2C4894A3B552A1EB.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160adcaaf5de11---66974761776.pdfIn PDF document text
  • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/be95563332cc8070ece06af47d9b5edc/3234065297.pdfIn PDF document text
  • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/0htoo9nsv7pfvvmken2rmq8o0g/8638482776.pdfIn PDF document text
  • http://mgocsm.in/userfiles/file/zifizepi.pdfIn PDF document text
  • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161117caa5dcb1---46767997714.pdfIn PDF document text
  • http://stewartreunion2020.com/clients/2/2a/2a0d9dcdd57715375c9f4393c24df0f2/File/7221384809.pdfIn PDF document text
  • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/haao46hlto2adhqc8n1mie5j56/daxejof.pdfIn PDF document text
  • http://xpeedon.net/userfiles/file/20210821131242.pdfIn PDF document text
  • https://erdenetpost.mn/userfiles/files/79802726060.pdfIn PDF document text
  • http://pleasanthillpchurch.com/clients/5/55/55aa087cacc886b2254ddcc242c0699b/File/4146624861.pdfIn PDF document text
  • http://dbexpertise.fr/catalogue_dynamique/file/53033330704.pdfIn PDF document text
  • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xodarenetafajagab.pdfIn PDF document text
  • https://marbellamohali.com/wp-content/plugins/super-forms/uploads/php/files/0b5fc53c4bd1dd05e8d381582f4bf275/37804416408.pdfIn PDF document text
  • http://pokeocncafe.com/uploads/files/11166316228.pdfIn PDF document text
  • http://mtsskzy.com/userfiles/file/dorizi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=rrb+group+d+exam+date+2018+admit+card+download+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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