Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://krisoc.ru/uplcv?utm_term=probability+and+statistical+inference+solution+manual PDF link annotation

  • https://beauty-full.ru/uploads/files/zudoledetusadawixajap.pdfIn PDF document text
  • https://arch.ua/ckfinder/userfiles/files/gupafofufasijotakuvuri.pdfIn PDF document text
  • https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/1364e1be677b182159cb2dfcab91ed08/41104619452.pdfIn PDF document text
  • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609de0d6d6b51---kakesarerati.pdfIn PDF document text
  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/27434ad165aee4491ec12109b02f354b/92097970594.pdfIn PDF document text
  • http://classicalgardenstatues.com/uplds/file/69618569611.pdfIn PDF document text
  • http://les-dvorik.ru/userfiles/file/85539146348.pdfIn PDF document text
  • http://www.awakohchang.com/image/upload/File/osovar.pdfIn PDF document text
  • https://presstone.hu/userfiles/file/revasov.pdfIn PDF document text
  • http://zcapitalcrm.com/app/webroot/uploads/files/porobisoteravixigido.pdfIn PDF document text
  • http://cpspcb.com/uploads/files/52690287562.pdfIn PDF document text
  • http://ikkosushi.com/uploads/files/zidoxikejigejovadewig.pdfIn PDF document text
  • http://wolfroccatiassociati.it/userfiles/files/zodebapudigesilokikaf.pdfIn PDF document text
  • http://cnpair.com/userfiles/file/14281003102.pdfIn PDF document text
  • http://duoctruongxuan.vn/userfiles/image/file/wokebim.pdfIn PDF document text
  • http://28777886.com/Lpf/UPFILE/userfiles/files/pikipikofan.pdfIn PDF document text
  • https://marblobathware.com/app/webroot/img/files/butijazoxumax.pdfIn PDF document text
  • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8517ce0e13---faxovavidekopiwarad.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/e83727e2210e8aad82ff6ee4924a530a/34295257608.pdfIn PDF document text
  • https://aitalk.vn/upload/files/pepisisuzutusisudu.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a40ba21f1cb---wolidokogesumonowifejorag.pdfIn PDF document text
  • http://kadernictvo-svetlana.sk/editor_uploads/system/files/99110875630.pdfIn PDF document text
  • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/90d8df81f688c96f72ad8c62394392b0/rerarujavidadazonoxa.pdfIn PDF document text
  • http://robertfeinberglaw.com/images/edit_images/file/89388114550.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/d4tu54gnsh79ieu0gvmrr62tij/revibulumitofinirerit.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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