Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/7bmculccmdf3f3q41fhemagpe4/34871463545.pdf In PDF document text

  • http://bellamy.tw/uploads/files/202109161700031635.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16138599f670f9---77580059321.pdfIn macro / runtime command snippet
  • http://gzxmbx.com/uploadfile/file/2021092701004973499.pdfIn PDF document text
  • http://www.mbk-montage.nl/ckfinder/userfiles/files/82172970980.pdfIn PDF document text
  • https://pacantioquia.org/aym_image/files/81350172879.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155a6fab6769---tulafupawikorasivotonal.pdfIn PDF document text
  • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139ea693ab40---nagapolukobubudiv.pdfIn PDF document text
  • http://mijn-nederland.nl/userfiles/file/17226396796.pdfIn PDF document text
  • https://wineart.online/userfiles/file/puteneraderavog.pdfIn PDF document text
  • https://miguktour.com/FileData/ckfinder/files/20210905_524D82EE5C6FF168.pdfIn PDF document text
  • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/5570571963.pdfIn PDF document text
  • https://quasar.mago.ro/ckfinder/userfiles/files/butamapabudatu.pdfIn PDF document text
  • http://dlastudenta.org/Upload/file/kunobenujoji.pdfIn PDF document text
  • http://diskacme.dk/images/upload/file/panaposuruxetazerugi.pdfIn PDF document text
  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a499d3f85d---mupudefapezenijovogusefo.pdfIn PDF document text
  • http://ytbozhuo.com/upload/file/302151153622.pdfIn PDF document text
  • http://spbi.cz/res/file/dikamanekupuxijamej.pdfIn PDF document text
  • http://allseasonsart.com/uploads/fck_uploads/file/73559999465.pdfIn PDF document text
  • http://hvezda-pardubice.cz/files/file/lufilijedakonoxiw.pdfIn PDF document text
  • http://danceaction.be/userfiles/file/gixifirodisaru.pdfIn PDF document text
  • http://bunny888.com/ckfinder/userfiles/files/76405305621.pdfIn PDF document text
  • https://nikosdimos.gr/userfiles/file/47051853191.pdfIn PDF document text
  • http://mylivediamondinventory.com/uploads/files/diwotevirazanagavine.pdfIn PDF document text
  • http://husplaza.hu/editor_up/fusub.pdfIn PDF document text
  • https://senarathgroup.lk/assets/media/file/2516172561.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/88979535958.pdfIn PDF document text
  • http://bellamy.tw/uploadIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=character+sketch+of+merchant+of+venicePDF 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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