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 https://crewmak.ru/uplcv?utm_term=how+to+find+the+vertex+of+a+quadratic+function+in+standard+form PDF link annotation

  • https://octvads.site/js/ckfinder/userfiles/files/xoroburotesomeza.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/fakili.pdfIn PDF document text
  • http://qdcmd.com/data/files/57315123851.pdfIn PDF document text
  • http://tomasmrazek.cz/userfiles/file/xorosofekimuva.pdfIn PDF document text
  • https://skvacations.com/userfiles/file/72344819043.pdfIn macro / runtime command snippet
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613272c32c046---17254826968.pdfIn PDF document text
  • http://cu-mbc.com/ckfinder/userfiles/files/fuxode.pdfIn PDF document text
  • https://alansglobalservices.com/ckfinder/userfiles/files/fagejoviz.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210928051319080267s8goph.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146da49bf97f---17982779448.pdfIn PDF document text
  • http://rideco.hu/upload/file/62397302394.pdfIn PDF document text
  • https://khotelmarket.com/FileData/ckfinder/files/20210912_EC6F14335A836F13.pdfIn PDF document text
  • http://ladyqueen.it/userfiles/files/51689952259.pdfIn PDF document text
  • http://abwnickersonplaza.com/uploads/files/82222313332.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1614d7dd58dd89---fedoroxu.pdfIn PDF document text
  • http://strategie-online.net/catalogue_dynamique/file/95138125711.pdfIn PDF document text
  • https://eastmanllc.com/ckfinder/userfiles/files/moniwadakodareju.pdfIn PDF document text
  • http://myhoteltrip.com/userfiles/file/51503473286.pdfIn PDF document text
  • http://ingegneriarossi.it/userfiles/files/43043603753.pdfIn PDF document text
  • http://yidaig.com/uploadfile/file/20210912185442.pdfIn PDF document text
  • http://hairfibers24.com/upload/file/80188902355.pdfIn PDF document text
  • http://mmckno2010.zkosuchdol.info/files/mivadakodi.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/728c3abad51f56643a851de8c8db6ac6/35913407213.pdfIn PDF document text
  • http://www.mecateengenharia.com.br/ckfinder/userfiles/files/80988737497.pdfIn PDF document text
  • https://datenglagi.com/contents/files/83464550989.pdfIn PDF document text
  • https://shreenatharcade.com/userfiles/file/bunukarim.pdfIn PDF document text
  • https://coevent.ru/upload/files/vojaniwof.pdfIn PDF document text
  • http://tomasmrazek.cz/useIn 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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