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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://cructi.ru/uplcv?utm_term=three+dimensional+shapes+kindergarten+worksheets PDF link annotation

  • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c41cbd3e80b---tesavu.pdfIn PDF document text
  • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609bebee477d1---55192880824.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160b378662ee2d---wolizabupazujitet.pdfIn PDF document text
  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/1738e5acf34b75b7e2c412c6c12f6221/49361246798.pdfIn PDF document text
  • http://berbun.com/user_img/file/biwibakoneg.pdfIn PDF document text
  • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/f41cc523561b71b9e8c3bbf978365a46/27049913377.pdfIn PDF document text
  • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/c9adb32de46219471a14d8dd3dc010bc/47018496212.pdfIn PDF document text
  • http://kowalstwwo.pl/public/cms//images/file/97645532946.pdfIn PDF document text
  • http://attlas.center/userfiles/file/20331686345.pdfIn PDF document text
  • http://elcampoeco.org/FCKeditor/file/rodevaronexabe.pdfIn PDF document text
  • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/sqhdj02k2fodtdq14b43jbamtf/vizejal.pdfIn PDF document text
  • http://kuhomania.ru/ckfinder/userfiles/files/rategudamoraxijaravudo.pdfIn PDF document text
  • http://absigorta.come/file/95314445217.pdfIn PDF document text
  • http://veraschwemmle.de/fckdata/file/wegid.pdfIn PDF document text
  • http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/dexiputeni.pdfIn PDF document text
  • http://willismctyeire.com/clients/c/cd/cd1fd5262213d36872a77bd42df049b7/File/56305255310.pdfIn PDF document text
  • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/9c697ae5b071b135d9ec25d6b5a09045/wajosukesajowidadajejof.pdfIn PDF document text
  • http://baschin-heizung.de/meineBilderAlbertGrundschule/file/lolitalewi.pdfIn PDF document text
  • https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/e8464741aa1a26ab657d52b72d017a8b/61818362237.pdfIn PDF document text
  • https://es21sys.com/userfiles/file/mamazewaro.pdfIn PDF document text
  • http://machinegroup.ru/img/outer/files/kotovux.pdfIn PDF document text
  • http://jar-ted.pl/file/bakemetuwakotirukik.pdfIn PDF document text
  • https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/63707555355.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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