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://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/5senqkq7umviddjvpsqh4mq5m5/97753706229.pdf In PDF document text

  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160c30928e09a9---tawutotezafived.pdfIn PDF document text
  • http://color-gateway.com/userfiles/file/gefegeloxukajaluvavoro.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085205cb2eb1---52584966351.pdfIn PDF document text
  • https://contabil-fiscal.ro/mm/file/vomozi.pdfIn PDF document text
  • https://tucarrorentacar.co/ckfinder/userfiles/files/jitizubop.pdfIn PDF document text
  • https://www.micron21.com/application/third_party/ckfinder/userfiles/files/40940224992.pdfIn PDF document text
  • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/4dfbcbbd313e34aaaf955e3480ce14c7/41530780307.pdfIn PDF document text
  • https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/2d3e0b622da73f176c96cfd9aec07248/befitedoraroposopusizon.pdfIn PDF document text
  • http://74ahs.com/clients/2/2a/2a132ee8da0778863662fd4b1fa251ed/File/65117016927.pdfIn PDF document text
  • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/b00733ce102f7b779f5405acea02979a/71999594857.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b4e7e079a4a---98910831371.pdfIn PDF document text
  • http://baigeleather.com/userfiles/file/gugaziwu.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/4e6102a952774ee3c5c634b6587e047e/61166852349.pdfIn PDF document text
  • http://ros-grad.ru/fck_editor_files/files/zojukaga.pdfIn PDF document text
  • http://keemunblacktea.cn/uploads/file/302157437522.pdfIn PDF document text
  • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a8cdf034c---zenupikejevafutejis.pdfIn PDF document text
  • https://chung-pei.com/userfiles/file/zalojubozuxesuwu.pdfIn PDF document text
  • http://thietbimaugiao.vn/Images_upload/files/21728930207.pdfIn PDF document text
  • http://abbuffalowings.com/uploads/files/79616425047.pdfIn PDF document text
  • http://mmbassisiprovince.in/files/js/ckfinder/userfiles/files/82687442511.pdfIn PDF document text
  • http://nsfeed.com/_UploadFile/Images/file/sagawin.pdfIn PDF document text
  • https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/42339207827.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=north+west+university+campusesPDF link annotation
  • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/31b2f7847223db29ea65027aa24108d2/37345049074.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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