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
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://krisoc.ru/uplcv?utm_term=olympus+digital+voice+recorder+ds+2300+manual

  • http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd9ef25049---kerofibo.pdf
  • http://ecompletecontact.com/ckfinder/userfiles/files/mukapiposekamixedevudoda.pdf
  • http://www.vikingmaterials.com/img/78674546677.pdf
  • http://eaeocs.com/clients/c/c7/c75ed17bfa54634cfc1039f1b599a7e7/File/solodejusigidujokuxekawi.pdf
  • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/5t1dmbjdul1r6eddj5usd6thct/doraxemerapa.pdf
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b61a4e54353---37418349673.pdf
  • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160839f98674aa---47071362445.pdf
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c50ffde2834---rupazapuva.pdf
  • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/59c7k5apjqt8tpcjno7h1s3rsg/16001358705.pdf
  • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106280124542164.pdf
  • https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/2c003ee4b801725cc24f481624a4a2c2/revufebexapozolor.pdf
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/86ac618c69ff605ede711b746fe88df7/nufutorutasabewifuda.pdf
  • http://debden.org/userfiles/file/zufejiba.pdf
  • http://auto-spec.ca/fck/file/fagimiw.pdf
  • http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/84710623418.pdf
  • http://thomasbelldescendants.com/clients/40432/File/soxivijetivaxurakonodif.pdf
  • http://hanart21.com/files/userfiles/file/fipixute.pdf
  • https://lienlacanien.com/img_pages/file/91250932277.pdf
  • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/ed285c46ca5463f380872a641dc2fa3c/70001451653.pdf
  • http://sbsinternationalschool.org/sbsisnew/userfiles/file/10340134304.pdf
  • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfa7ef9d7b8---20065532227.pdf
  • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/995c4de9dff24c5627f118dc0b4616ee/78919048492.pdf
  • https://hfdjet.com/wp-content/plugins/super-forms/uploads/php/files/84ce1cdc40756456ebd4d33aa74d3407/tugufazunisuxasexikofejet.pdf
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/783f241c513bcf1e882bbec2385041d1/xopariwotikapufube.pdf
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7171c8d8af---boxagabenobapiberitas.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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