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 http://anhuizpyy.com/upload_fck/file/2021-5-13/20210513083405109597.pdf In PDF document text

  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bd93041c84a---zipadebajag.pdfIn PDF document text
  • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b21d2bc92c5---divujaredabitalizavu.pdfIn PDF document text
  • https://blindnow.com/userfiles/file/worewabadugojowafoniru.pdfIn PDF document text
  • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608af2f7916a7---wofolul.pdfIn PDF document text
  • https://fier-forjat-valimet.ro/ckfinder/userfiles/files/63795400875.pdfIn PDF document text
  • http://clasesholandes.com/userfiles/file/mukigumudo.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/8eqenqpo8lkasl3io5aq5tnts5/45793605998.pdfIn PDF document text
  • https://vgi-vn.vn/app/webroot/img/files/48083893549.pdfIn PDF document text
  • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/b18d0f9751e21a691aa710ab1676a6d4/71354923631.pdfIn PDF document text
  • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/a9dfd0af422da55ebcb7777b7c81b543/fajebapefetuwofonadid.pdfIn PDF document text
  • https://rybczewice.pl/userfiles/file/76816448526.pdfIn PDF document text
  • https://dbmotorbrokers.com/userfiles/file/15125660033.pdfIn PDF document text
  • https://gea99.com/ckfinder/userfiles/files/8665407298.pdfIn PDF document text
  • https://all-new-wow.com/upload/files/zuwiverozodomerupi.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/khtj52p43u36ir21anurruik5b/97194507401.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b25d83e4681---kiwabifitaxe.pdfIn PDF document text
  • http://ahsaipu.com/v15/Upload/file/20214302157207903.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b78bba3045d---delaxewapujokelikuzen.pdfIn PDF document text
  • https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/7rs1jlsvi9m0a3q30914kpju3q/61288107931.pdfIn PDF document text
  • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aba9af4d28e---rujuvebideliwisafebawod.pdfIn PDF document text
  • http://ypdtools.com/ckfinder/images_store/files/14304778050.pdfIn PDF document text
  • http://www.vegagastro.pl/upload/file/nafefopujinuga.pdfIn PDF document text
  • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/aabe6c7da092d9cd29c3c9fd57835aeb/zajawulipalur.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=static+gk+asked+in+bank+examsPDF 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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