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
• 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=13+reasons+why+book+quotes PDF link annotation

  • http://geodez.com/pliki/file/13955022080.pdfIn PDF document text
  • http://sintellect.ru/Repository/file/37263016271.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161539c26cb2ac---88944641997.pdfIn PDF document text
  • https://icon-studios.com/userfiles/file/96145322576.pdfIn PDF document text
  • https://ximangcampha.vn/upload/files/zenevuzor.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/tlgg16ar8df9p21m3ll1aej9fh/15085972757.pdfIn PDF document text
  • http://mrpokedb.com/uploads/files/fejaxawerur.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/regabarumetobu.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210905045710226.pdfIn PDF document text
  • http://heaig.org/editor/ckfinder/userfiles/files/lalulavirogajuwawakimugaf.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/morodepudaxome.pdfIn PDF document text
  • http://poslovniimenik.net/firme_data/files/xudokonipefawuki.pdfIn PDF document text
  • http://gmei.lt/ckfinder/userfiles/files/15236640724.pdfIn macro / runtime command snippet
  • https://czus-lukasa.sk/userfiles/file/31042948565.pdfIn macro / runtime command snippet
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614374e03e522---63970094875.pdfIn PDF document text
  • http://olympiad-bigben.ru/ckfinder/userfiles/files/davifimonakagumitelobegux.pdfIn PDF document text
  • https://rintrans.com/files/77321955570.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ead8749012---66705269164.pdfIn PDF document text
  • http://www.mecateengenharia.com.br/ckfinder/userfiles/files/86974703257.pdfIn PDF document text
  • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/161598fbda1d60---11222506397.pdfIn PDF document text
  • http://avsa.org/sites/default/files/images/files/69944673445.pdfIn PDF document text
  • http://magogaralbamoble.com/galeria/files/47343537952.pdfIn PDF document text
  • http://aodaiminhhanh.com/app/webroot/uploads/files/26110760714.pdfIn PDF document text
  • https://zlatartopalovic.rs/files/bigubebezupovopuv.pdfIn PDF document text
  • https://zlato-eu.cz/upload/files/bekolavolopolini.pdfIn PDF document text
  • http://yuanjiangchem.com/upload/files/19524202352.pdfIn PDF document text
  • http://poslovniimeniIn 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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