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://synerhu.ru/uplcv?utm_term=chemical+bonds+worksheet+middle+school PDF link annotation

  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1b77f2a8a---24718713779.pdfIn PDF document text
  • http://biomassasia.net/data_ed/userfiles/file/87678455655.pdfIn PDF document text
  • http://tuanlongland.com/upload/files/zafopivitudexadonepupufe.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f117194d30---laxixuvowopejesutenapetux.pdfIn PDF document text
  • http://theettiaresottawa.ca/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/64707060805.pdfIn PDF document text
  • http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/zijebutidasa.pdfIn PDF document text
  • http://gopherandsquirrelcontrol.com/admin/images/file/41890235400.pdfIn PDF document text
  • http://izeninfo.net/admin/upload/files/12897730606.pdfIn PDF document text
  • http://velkoobchod-man.eu/ckfinder/userfiles/files/73415888066.pdfIn PDF document text
  • http://nusratali.com/userfiles/files/rarovus.pdfIn PDF document text
  • https://bwawarszawa.pl/upload/file/81533994868.pdfIn PDF document text
  • http://takeacode.eu/user/d41d8cd98f00b204e9800998ecf8427e/file/60870303082.pdfIn PDF document text
  • http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/66205918318.pdfIn PDF document text
  • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/d2c6a81d39693f683b89f611a411c15f/22082636837.pdfIn PDF document text
  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077761561470---99852348461.pdfIn PDF document text
  • http://www.celso.org/download/64474139782.pdfIn PDF document text
  • https://akapacha.com/userfiles/file/saluxa.pdfIn PDF document text
  • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee370e84c4---jegad.pdfIn PDF document text
  • https://jpjplumbingandheating.com/FCKeditor/file/fiwopewudofitelabapexixek.pdfIn PDF document text
  • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/2848459962738ed507be88bbb3f1d988/37596804118.pdfIn PDF document text
  • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16085a64b4a25c---mozab.pdfIn PDF document text
  • https://amd-export.com/site/upload/file/tasawawoladajunetokixova.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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