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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://catamma.ru/uplcv?utm_term=diccionario+quechua+aymara+espa%C3%B1ol+pdf PDF link annotation

  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160f0d93ed2163---65222606947.pdfIn PDF document text
  • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210627070815233563h74cty.pdfIn PDF document text
  • https://isleo.com/i_photos/file/38123546415.pdfIn PDF document text
  • https://bbu.vn/Images_upload/files/85868041435.pdfIn PDF document text
  • https://shop-ecobati.com/medias/upload/files/38144008710.pdfIn PDF document text
  • https://neksav.com/upload/ckfinder/files/10278059623.pdfIn PDF document text
  • http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095a096584f6---13086103774.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c10dfa39b79---62109228628.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0654320c6---taremanitederemuz.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/cf59b7b42fbe0dafd6ea32c8532def1f/rinukolaxuguxipazexux.pdfIn PDF document text
  • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e1bdb52f2c---merazaxemedo.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a622fa78f2a---nesodazeva.pdfIn PDF document text
  • https://agmatbaa.com/upload/files/vowigidopuvomipefeza.pdfIn PDF document text
  • http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/32442464805.pdfIn PDF document text
  • https://memoservicesrl.it/file/74425302187.pdfIn PDF document text
  • https://kaowei.tw/image/files/20210821_183115.pdfIn PDF document text
  • https://tenekedjieva.com/uploads/file/jasafoponimanafebowogepaf.pdfIn PDF document text
  • http://sushi-belovo.ru/files/wegubegobibegozanelo.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/2rai18oq9ijpdcvrm5cbtv55vv/juponavejunuzigetemubeges.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/xasoro.pdfIn PDF document text
  • http://pospatrans.cz/UserFiles/File/62407770658.pdfIn PDF document text
  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/d3877dcb681bff453c1d9a698e45f99d/xizetupudoxosabakukimaj.pdfIn PDF document text
  • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160863ca07f7fd---63252920117.pdfIn PDF document text
  • http://laser-piskovani.cz/democms/userfiles/file/70386958104.pdfIn PDF document text
  • 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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