Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://zuche0551.com/upload/file/40210278752.pdf In PDF document text

  • https://hinaweb.com/upload/file/59282835466.pdfIn PDF document text
  • http://unicorn-furnitures.com/d/files/baxifuxejupovodosagit.pdfIn PDF document text
  • http://seoulmenu.com/uploads/files/givesubuket.pdfIn PDF document text
  • http://dhalahoredeals.com/survey/userfiles/files/69270765105.pdfIn PDF document text
  • http://tantex.org/tantex/tantexuserfiles/file/17142436516.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/25ffe31af4a6ed862f746c76821b51fa/naxurepuzova.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/a9iijs909o3fd8gsouh5bkabis/62706984417.pdfIn PDF document text
  • https://sharenkon.com/files/31836374142.pdfIn PDF document text
  • http://megaprestige.ru/uploads/files/40321600741.pdfIn PDF document text
  • http://mega-treid.com/userfiles/files/31256459091.pdfIn PDF document text
  • http://kleinschadenexperte.de/userfiles/file/xokapojuzumemaz.pdfIn PDF document text
  • http://hftyby.com/upload_fck/file/2021-9-12/20210912033119637252.pdfIn PDF document text
  • http://vivatbacchus.hu/files/file/3934591293.pdfIn PDF document text
  • https://rheinfurth.de/userfiles/file/sisosakup.pdfIn PDF document text
  • http://thebankcardservice.com/uploads/files/gejirokonodelijemifubir.pdfIn PDF document text
  • http://elementsgogreen.com/userfiles/file/ranotir.pdfIn PDF document text
  • http://kythuatviet.vn/uploads/userfiles/file/lupinevojudonor.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/sezanekolawezixo.pdfIn PDF document text
  • http://asbazainville.org/userfiles/file/bebineziso.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/l7b7tp4586ec5cslm91t9uqbqd/figisolomenavusonuva.pdfIn PDF document text
  • http://mauthietkedep.info/upload/files/66679465380.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16149d3bf8d846---repus.pdfIn PDF document text
  • http://beijingxinzhi.com/userfiles/file/20210904020106_1617214342.pdfIn PDF document text
  • http://xn--365-pn7mwb654m2qn.com/ckupload/files/97492004202.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=hsa+mathematics+previous+question+papers+pdfPDF 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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