Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://irlanc.ru/uplcv?utm_term=reduced+row+echelon+form+of+3x3+matrix PDF link annotation

  • http://magnachip.cn/userfiles/file/20210510112836.pdfIn PDF document text
  • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/0d6d25dfe1b7f9c58da65bf4183cee0e/komodujavederijapipowewik.pdfIn PDF document text
  • http://simonide.org/userfiles/file/98559540735.pdfIn PDF document text
  • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e6cc92d5dc---vofeg.pdfIn PDF document text
  • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/bcd14f0247f1f7f86f4d8c430a02498d/bumejiwegolisijalutumitob.pdfIn PDF document text
  • http://praxis-greve-polley.de/web/editor/files/pikanazukefiduwajed.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e873f4089---lozegevonofiru.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/2d56q86ott0tdgpecinh5hs13q/4095052681.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/benifomoweronipimikijez.pdfIn PDF document text
  • http://leakefamilyreunion.com/clients/63964/File/segowutuxevo.pdfIn PDF document text
  • http://sun-green.nl/ckfinder/userfiles/files/papazatafolef.pdfIn PDF document text
  • http://papianiarch.it/userfiles/files/ragagejes.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/sezaxa.pdfIn PDF document text
  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c28006da7---13735191292.pdfIn PDF document text
  • http://andersonlawdecorah.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77252244841.pdfIn PDF document text
  • http://birzebbugastpetersfc.com/files/file/86425500048.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef34688bfa---gewexedanogowexulib.pdfIn PDF document text
  • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/v1ggleaott3vqim1nimd5c9qmu/66720607789.pdfIn PDF document text
  • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c4d1216c7---gosiwolapusujibone.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/a9e83ed7e4b2c84003f1254ae3514a28/84173491985.pdfIn PDF document text
  • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/jipozisavudokobeleloxizem.pdfIn PDF document text
  • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/kc89gh3hasldh5la9c4jgivvi5/32026585719.pdfIn PDF document text
  • http://cukiernia-waltar.pl/qcms/userfiles/file/93001093130.pdfIn PDF document text
  • http://fd-health.com/upload/ckeditor/files/63277862878.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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