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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://crysiq.ru/uplcv?utm_term=simulador+de+plc+para+android PDF link annotation

  • https://mastirz.com/userfiles/files/24457176862.pdfIn PDF document text
  • http://kqcme.yiaiwang.com.cn/upload/files/43688410517.pdfIn PDF document text
  • http://alconsprom.ru/ckfinder/userfiles/files/45762027156.pdfIn PDF document text
  • http://uniontsg96.ru/admin/ckfinder/userfiles/files/xabupivixutonanikixub.pdfIn PDF document text
  • http://mikailang.com/userfiles/file/20210901165251_1858732235.pdfIn PDF document text
  • http://shceping.com/upFile/photos/2021-9/file/61126974263.pdfIn PDF document text
  • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161438e5b8009b---63132660487.pdfIn PDF document text
  • http://msslink.ru/userfiles/files/38947415939.pdfIn PDF document text
  • http://bestorkate.com/uploads/ckeditor/files/93945809681.pdfIn PDF document text
  • https://alyosserspneed.com/userfiles/files/ruwiguwapapev.pdfIn PDF document text
  • http://land89.com/ckupload/files/lezokimudaxo.pdfIn PDF document text
  • https://momentous-inst.com/uploads/image/files/bafesitujekaxugif.pdfIn PDF document text
  • https://cultureresortpokhara.com/assets/userfiles/files/91012616823.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1d4a2e883---12947154626.pdfIn PDF document text
  • http://shahgrp.com/uploads/76609393082.pdfIn PDF document text
  • http://thegioixedap.net/upload/files/19953901491.pdfIn PDF document text
  • http://na3.it/misc/file/24383875090.pdfIn PDF document text
  • http://krr-nfe.com/suratnfe/UserFiles/File/35150438878.pdfIn PDF document text
  • http://janaturismointegrato.com/uploads/file/62685944180.pdfIn PDF document text
  • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/vixinatugiwozajovuzula.pdfIn PDF document text
  • http://shbaicun.com/userfiles/file/2021090508474473499.pdfIn PDF document text
  • http://phongkhamthienhoa.org/images/files/53011288683.pdfIn PDF document text
  • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613356c30b8ed---48168173063.pdfIn PDF document text
  • http://kuppersbusch.hu/userfiles/files/fugepenevezevifuwovef.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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