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
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://catamma.ru/uplcv?utm_term=medical-surgical+nursing+brunner+and+suddarth+pdf+free+download PDF link annotation

  • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa083f84757---jusetip.pdfIn PDF document text
  • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095e8d05db04---boxexesasig.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/70a7d01073719de8ae4358aeefffd9c5/81138724945.pdfIn PDF document text
  • https://study4student.com/cache/fck_files/file/10436808691.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/xikamapi.pdfIn PDF document text
  • http://ikhmongol.mn/ckfinder/userfiles/files/gipoxitadesafamogimede.pdfIn PDF document text
  • http://firmykominkowe.pl/Obrazki/edytor/file/52011878623.pdfIn PDF document text
  • https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/l44rn29daeplpoipva50s8hgth/pavujudipobixepa.pdfIn PDF document text
  • http://hosungtour.com/FileData/ckfinder/files/20210712_14D9542970B8DC39.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085244d8d3bb---90245206462.pdfIn PDF document text
  • https://srinivasagroup.com/ci/userfiles/files/35223274704.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6d838ab4e---sozudevemejaburawedo.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/7c428adf4cecfd0f8480a60d3d6056e9/gajevabedokufumezip.pdfIn PDF document text
  • https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5e8c0f5f6---fifaxabud.pdfIn PDF document text
  • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/ggpiivca33vmpvhhql5dbk71d7/sejoleguleferelozaluf.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f15c60ae4ae---lopijaxotedelobeviputowo.pdfIn PDF document text
  • https://eol.org.pe/ckfinder/userfiles/files/74910545757.pdfIn PDF document text
  • http://aaaexpressheating.com/userfiles/file/13912854314.pdfIn PDF document text
  • https://kuni.ro/app/webroot/files/userfiles/files/9806380397.pdfIn PDF document text
  • http://wecans.net/_UploadFile/Images/file/58387859448.pdfIn PDF document text
  • http://upasamed.org/Content/uploads/files/29592950865.pdfIn PDF document text
  • https://argentinaproduct.com/ckfinder/userfiles/files/53348870091.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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