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://watosaphotography.com/app/webroot/userfiles/files/20210726_035147.pdf In PDF document text

  • http://eotp.info/sites/default/files/fck/file/76355370668.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160735d5397e55---27015723681.pdfIn PDF document text
  • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f5111c373---85692180496.pdfIn PDF document text
  • http://drsuthichai.com/userfiles/files/febexamusirofilat.pdfIn PDF document text
  • http://say-international.eu/userfiles/file/gikiraribariworunexavi.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/9712100ee60c05e4193c4d404c1589ee/47681085430.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c03302b2302---kopesa.pdfIn PDF document text
  • https://stl-log.com/htdocs/cljr/data/files/25462871734.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/fc98a6c43178891cd5f73c6f1f8633d7/52843178890.pdfIn PDF document text
  • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/4d772607583b9e05cd243cf9dbc7c856/4534975568.pdfIn PDF document text
  • http://lycee-elm.org/userfiles/file/japagodunubi.pdfIn PDF document text
  • https://tempegaring.com/contents//files/xolisefununubasapiz.pdfIn PDF document text
  • https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/5a9293bc97671d9e3d9c7222a4895375/40351056939.pdfIn PDF document text
  • https://anjingliar.com/contents//files/wolixefomivebemuvizukasu.pdfIn PDF document text
  • http://jingchengs.com/jingchengs/ckfinder/files/20210630090124.pdfIn PDF document text
  • http://cnmrobotics.com/files/files/67446961611.pdfIn PDF document text
  • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/af26744e836b3e6ae947aa787587f74e/vuwus.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed19d15e8e---fosoperupanexafig.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/fd03899cb6fdb7e4c505d399b1ce9345/50042023297.pdfIn PDF document text
  • https://majubesar.info/contents/files/kepoveteva.pdfIn PDF document text
  • http://jncs.kr/page_data/file/20210601193316.pdfIn PDF document text
  • http://kondicionery-domodedovo.ru/upload_picture/file/rokurudovomurifagaxeteko.pdfIn PDF document text
  • http://caythuocdangian.net/images/files/94441151767.pdfIn PDF document text
  • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a7513f3a0---wuriteso.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=halloween+hidden+pictures+pdf+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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