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 http://zhouzhuanx.com/v15/Upload/file/2021881141322287.pdf In PDF document text

  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1609935338633f---tobet.pdfIn PDF document text
  • https://derechosenred.org/aym_image/files/27671786318.pdfIn PDF document text
  • https://stef-nancy.fr/upload/document/delurutiwagadapi.pdfIn PDF document text
  • https://www.sibirprokat.ru/ckfinder/userfiles/files/62284126375.pdfIn PDF document text
  • http://lerucherdesanges.fr/userfiles/file/resarakikijewonumo.pdfIn PDF document text
  • http://lotusromeo.fr/app/webroot/files/userfiles/files/50423747305.pdfIn PDF document text
  • http://saxons99.com/clients/5/5f/5faa49e4155ddd0d4faf97b0d7aa3dde/File/55407929805.pdfIn PDF document text
  • https://raiporjai.com/piceditor/file/rejabowiv.pdfIn PDF document text
  • https://oazapiekna.com/zdjecia/fck/file/95365725417.pdfIn PDF document text
  • http://oceanstatevolleyball.org/clients/879495/File/35365804341.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a73469869f2---13148102161.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b706c3aa38---berima.pdfIn PDF document text
  • http://landonintergroup.com/ckfinder/userfiles/files/32918884774.pdfIn PDF document text
  • https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/334f690b77fef5f5a548da7ce74f3b06/xamunala.pdfIn PDF document text
  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16078489a4f532---kafoleluxako.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609840ca2cbfb.pdfIn PDF document text
  • http://traiteur-ribot.fr/userfiles/file/fifubub.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c62e89876bf---34773734014.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609e3be485ee6---vitinoleja.pdfIn PDF document text
  • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/405308bd5002ab816707e823aec97dab/35965519265.pdfIn PDF document text
  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/765f9307e71b72d690ad46f0c0bbce01/komijafojuviguzed.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/fe0b9b0a9f6763e647914d9ee8e57e78/gugawumumitidusevezolapom.pdfIn PDF document text
  • https://blsautomation.com/ckfinder/userfiles/files/kowaz.pdfIn PDF document text
  • http://argyleliquidations.com/userfiles/files/83555042038.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=factors+affecting+the+rate+of+the+reactionPDF link annotation
  • 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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