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
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://yubit.co.za/YmrXLWy8?keyword=english%20vocabulary%20test%20online%20free%20with%20answers PDF link annotation

  • https://mufosuxid.weebly.com/uploads/1/3/4/0/134040625/lajigojutixusiwuguzo.pdfIn PDF document text
  • https://dudakodut.weebly.com/uploads/1/3/4/4/134497067/9497548.pdfIn PDF document text
  • http://rostocker-taxi.de/resources/files/jolefefadoweripuxuw.pdfIn PDF document text
  • https://shreenathtechnologies.com/userfiles/file/41469388861.pdfIn PDF document text
  • https://kunexiravirub.weebly.com/uploads/1/3/5/3/135344507/rinigubedipawu.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16228cb7fd2026---78347723769.pdfIn PDF document text
  • http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/67298394498.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/162323b64033a6---nowuwujimubuwexiwosugufi.pdfIn PDF document text
  • http://tmservice.nl/bestanden/files/rediwonulirovateb.pdfIn PDF document text
  • https://finugerijit.weebly.com/uploads/1/3/4/7/134702994/kenunugazexev.pdfIn PDF document text
  • https://butyfarm.mm520.net/userfiles/files/74158208334.pdfIn PDF document text
  • https://sanvexe.vn/webroot/img/files/2611320195.pdfIn PDF document text
  • https://vafopizinenited.weebly.com/uploads/1/3/4/4/134480139/df94b8a5b8328.pdfIn PDF document text
  • https://buxudirikebipur.weebly.com/uploads/1/3/1/1/131164004/tosupatepupegi-fakikodes-rolemaniz-jukajuwuloseba.pdfIn PDF document text
  • https://drinkpoint.com/uploads/files/40581516499.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/162201434a671f---38664966742.pdfIn PDF document text
  • https://vleek.com/uploads/files/pavosudisasizekanirete.pdfIn PDF document text
  • https://mofafodoler.weebly.com/uploads/1/3/0/8/130874416/4360964.pdfIn PDF document text
  • https://sevafunen.weebly.com/uploads/1/3/4/5/134588772/mexamirowidezet.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 extracted file (font_00_sfnt_off0000bd49.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bd49.bin)

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