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
• 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://synerhu.ru/uplcv?utm_term=curly+arrows+in+organic+chemistry PDF link annotation

  • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/utvj4bd4n194esb49c07hpegu7/97155901562.pdfIn PDF document text
  • https://propiedades.net/ckfinder/userfiles/files/38282206954.pdfIn macro / runtime command snippet
  • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/9680365a0ebc6a8dcb126e269bbbe1dc/gagalodufajoxofi.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f73dbdb29---33675626486.pdfIn PDF document text
  • https://gadd-asso.org/userfiles/file/39970946354.pdfIn PDF document text
  • http://thingsantiquesla.com/userfiles/files/80797545851.pdfIn PDF document text
  • https://numen-wow.com/userfiles/cloud//files/musajapivikuw.pdfIn PDF document text
  • http://vitacanes.com/uploads/files/60351306963.pdfIn PDF document text
  • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/n9usrbhoomq423n1afol14chh5/26102682566.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607b541188ed3---litosuzut.pdfIn PDF document text
  • http://fructusartis.com/i/File/zikekibiwixuvi.pdfIn PDF document text
  • http://lhs60to70.com/clients/3/32/32806278e47d7e4d905c37b1d6ebf04a/File/25251764868.pdfIn PDF document text
  • http://szao-spb.ru/images/news/file/wuxezoromilutapobu.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d679c04591e---zudovebozofuvunudon.pdfIn PDF document text
  • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/c5471c50cfde5e41211e90b7905ea814/2609349039.pdfIn PDF document text
  • http://thunderstar.cn/userfiles/file/20210508050233144558687.pdfIn PDF document text
  • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1608acbbe8d73e---gosijazupitapaxigoraloju.pdfIn PDF document text
  • http://bmcnx.com/userfiles/file/lakukujuvirilisoxuwosap.pdfIn PDF document text
  • http://e-kva.ru/admin/ckfinder/userfiles/files/juzekuzoponadugapatex.pdfIn PDF document text
  • https://cristalensi.com/public/File/lotenavesofidiviti.pdfIn PDF document text
  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16085d720b82e2---10023424574.pdfIn PDF document text
  • https://bookatowncar.com/userfiles/file/34809004423.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a5580dae89---16978299462.pdfIn PDF document text
  • http://grupophi.es/uploads/files/pasizenab.pdfIn PDF document text
  • https://www.ptlittleflowerIn macro / runtime command snippet
  • 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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