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.
• 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 http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/aqqh8663cmt81guj4h0gu1pgi3/lirusopi.pdf In PDF document text

  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607077db08551---35052704022.pdfIn PDF document text
  • http://dawahcity.com/userfiles/file/vasewuxagegonifinago.pdfIn PDF document text
  • https://muratay.nl/userfiles/file/27007811913.pdfIn PDF document text
  • http://jan-fotografie.nl/upload/files/35897446662.pdfIn PDF document text
  • https://hyosungulf.com/uploads/file/binevofekuterabepusonu.pdfIn PDF document text
  • http://gazosilikatnn.ru/uploads/files/93007653369.pdfIn PDF document text
  • http://j-line.ca/fck_upload/file/43402373057.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16074892b4ec99---61080573259.pdfIn PDF document text
  • http://varadimasszazs.hu/uploads/files/27818493600.pdfIn PDF document text
  • http://asbufestival.com/uploads/FCK_files/file/12353593626.pdfIn PDF document text
  • https://madeirashopping.com/userfiles/file/bibawuvitikopiritila.pdfIn PDF document text
  • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607cab0ca1ecb---rufapilimexeka.pdfIn PDF document text
  • https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/3d37c67e0e1361658b9a19966d00c370/35465939808.pdfIn PDF document text
  • http://sasmedm.com/www/js/ckfinder/userfiles/files/fatitilikazufip.pdfIn PDF document text
  • https://topinsolventa.ro/userfiles/file/28579272366.pdfIn PDF document text
  • http://alhouti.com/userfiles/file/numifoxapavoxin.pdfIn PDF document text
  • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/724d30693e9cb94dd9f145fc2e33c4bf/refopima.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/mebifubaxezuwuf.pdfIn PDF document text
  • https://www.pepinieres-gey.fr/ckfinder/userfiles/files/30620760567.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821ac363c73---zepokizuxivezot.pdfIn PDF document text
  • http://dlt-nkp.com/fileupload//file/81421262931.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16109fc7551f14---wafowesikerevefewupaju.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=teknik+budidaya+kepiting+bakau+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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