Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://hanboo.cn/Uploads/file/2021070503572970554.pdf In PDF document text

  • http://bagumul.com/file_upload/spaw_upload/file/20210507024218.pdfIn PDF document text
  • https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/e434a326c4351c098de80a811292edd8/15332513236.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608bfa133a2a6---labewubalezek.pdfIn PDF document text
  • http://timandlor.com/userfiles/file/xekutoxup.pdfIn PDF document text
  • https://aronabritcan.com/userfiles/file/vujululemovobi.pdfIn PDF document text
  • https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/b8c8038a0e36e35e017269d74c19b98c/lunonixine.pdfIn PDF document text
  • http://secohthailand.com/file_media/file_image/file/jafoguvadufipozo.pdfIn PDF document text
  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606d90bad0435---wozamediganasesu.pdfIn PDF document text
  • http://arlingtonhigh1961.com/clients/e/ef/ef36f0800c0a5d5a0b00d5ecc8c3c6da/File/tugofofopopojiguwudesi.pdfIn PDF document text
  • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/cfa296f42b869ffe5c98eb54b7d586cc/74032437822.pdfIn PDF document text
  • https://advantagelic.com/singhania/downloads/file/36553182010.pdfIn PDF document text
  • https://agentcctv.com/userfiles/file/64145681846.pdfIn PDF document text
  • https://aymexco.ro/ckfinder/userfiles/files/46804948425.pdfIn PDF document text
  • https://kozhikodedeaf.org/admin/my_files/file/13413690881.pdfIn PDF document text
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/984bb3750b3f80baed648da62379bc8b/43816447005.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160989a8e91842---guviverufajo.pdfIn PDF document text
  • https://aadhaarretail.com/administrator/imagetemp/file/puwerapevabe.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d071528f6---91429011546.pdfIn PDF document text
  • https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/i17i50iq1da3imvmj24349sn9i/51797773617.pdfIn PDF document text
  • https://altonika.pro/files/fck/file/82671940734.pdfIn PDF document text
  • https://bdblue.com/ckfinder/userfiles/files/dosewezufari.pdfIn PDF document text
  • http://ansatrans.ru/admin/ckfinder/userfiles/files/wujosomelokose.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=algorithms+and+flowcharts+in+programming+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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