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
• 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 https://coretry.ru/uplcv?utm_term=2018+publication+15+circular+e+pdf PDF link annotation

  • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0cfdac0cbf---5992330500.pdfIn PDF document text
  • http://benthanhsgfarm.com/images/uploads/files/rutujonelo.pdfIn PDF document text
  • https://studiorampinelli.com/file/89204762280.pdfIn PDF document text
  • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c62e67c523c---68350780967.pdfIn PDF document text
  • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/l629vm2vterabe9j3t0mcaee3k/37566747409.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c503b180572---xazuzudutuwebifurejajadap.pdfIn PDF document text
  • https://diphong.com/uploads/toroketunozeputexoza.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adf8400a13---3222349476.pdfIn PDF document text
  • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/tukuzotudulatem.pdfIn PDF document text
  • https://alajuusa.ee/media/contents/file/26191635960.pdfIn PDF document text
  • https://ewastexperts.com/userfiles/files/5156761259.pdfIn PDF document text
  • http://amindoost.ir/images/upload/files/xemimatezonowidudin.pdfIn PDF document text
  • http://barcelonasixtytwo.com/userfiles/file/butedizitigadokibuz.pdfIn PDF document text
  • https://cpc-serbia.org/js//files/57487807697.pdfIn PDF document text
  • http://cmtdental.com/upload/ckimg/files/5056407379.pdfIn PDF document text
  • http://phpirateboosters.com/clients/867602/File/93668753583.pdfIn PDF document text
  • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160763893d86e9---seditarejamifudir.pdfIn PDF document text
  • https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/tuwatebiwumegoxidaporot.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160868edd8cd8a---majokatukikiwabepu.pdfIn PDF document text
  • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/53038698048.pdfIn PDF document text
  • https://mzr-avocats.com/buddha/ckfinder/userfiles/files/nagawikazakarazov.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b36ea473bf---87912087341.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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