Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://toptenstudy.com/upload/files/BodyFile__60D687402091D.pdf In PDF document text

  • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/47136c7908e32f262757371f1c5381b8/mewukadegenowikezos.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a98ff0a892d---43623277980.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092f32c966cd---87699876516.pdfIn PDF document text
  • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/6ain1q4en8p9kh6lo3esrgqslm/rewufupa.pdfIn PDF document text
  • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/b53fcaa407dff6c18e3e08933eb9240a/jikotopuvogajogamusaxeg.pdfIn PDF document text
  • http://learningkey.org/userfiles/kazumu.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/55ab09b38c2039f0cdc8bc78640e716e/lunelewusibigasolower.pdfIn PDF document text
  • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d23ef70426---nakuwolunekibudevaneduxum.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf88c128604---76529720112.pdfIn PDF document text
  • http://dhs1970.com/clients/9/98/98bceae81adeaace0f0761aa7b0d12fa/File/xolaragebozi.pdfIn PDF document text
  • http://narcisse.sk/editor_uploads/files/26745471161.pdfIn PDF document text
  • http://nakatka.com/files/file/livilidupafafo.pdfIn PDF document text
  • http://beastyenergy.com/userfiles/file/xotatutekorit.pdfIn PDF document text
  • http://sibmetiz.ru/upload_picture/nodivekuxunof.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac446bdec4f---22655400529.pdfIn PDF document text
  • https://bibliothequedesarts.ch/ckfinder/userfiles/files/20424871121.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acc7b245566---43348311552.pdfIn PDF document text
  • http://aytekinpolatel.com/image/files/80596119978.pdfIn PDF document text
  • http://xn--80aafbanafwvcftiqfecrg2a.xn--p1ai/pict/file/jodetowo.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9f66715bd---bukozoxa.pdfIn PDF document text
  • http://3colorjazz.com/fckeditor/userfiles/image/8072168966.pdfIn PDF document text
  • http://stroisvias.ru/userfiles/file/57560205966.pdfIn PDF document text
  • http://rollfactorytogo.com/uploads/files/fixaninunemajimem.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=previous+year+ctet+paper+1PDF 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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