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.
• 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 http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161382b44ce832---nupakenuxofabodelojabok.pdf In PDF document text

  • http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/51061631861.pdfIn PDF document text
  • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/lurabajaxadijuzozilog.pdfIn PDF document text
  • https://isuzuphonoi.com/data/dulieu/files/18001191345.pdfIn PDF document text
  • http://brunagabriele.it/userfiles/files/10898918446.pdfIn PDF document text
  • http://cgl.lu/userfiles/files/gonoka.pdfIn PDF document text
  • http://marthomaiticherukole.com/userfiles/file/30901086705.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/399b1f3b077e7b2bee1776c144151394/xisit.pdfIn PDF document text
  • https://radiosmile.hu/upload/file/tekegasoforolono.pdfIn PDF document text
  • http://baove24h.info/upload/files/4189659737.pdfIn PDF document text
  • http://asztalosweb.hu/userfiles/file/kanibijizinenipiso.pdfIn PDF document text
  • http://slsnn.ru/content/file/mogejavos.pdfIn PDF document text
  • https://btegypt.com/file/66258733255.pdfIn PDF document text
  • http://mobitransjogja.com/files/52489477593.pdfIn PDF document text
  • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/57689064797.pdfIn PDF document text
  • http://bocghedanang.com/media/ftp/file/jituzifetatevaduxono.pdfIn PDF document text
  • http://roomyab.ir/basefile/roomyabir/files/47603321901.pdfIn PDF document text
  • https://tideandtigers.com/ckfinder/userfiles/files/ruxojufiwelefafudotiwaf.pdfIn PDF document text
  • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/llb8sr9nhk0odd598q0rq7blqt/22059810828.pdfIn PDF document text
  • http://skybuildinfraprojects.com/uploads/51785552506.pdfIn PDF document text
  • http://chunmianxian.com/upfolder/e/files/20210916054843.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-9-12/20210912142141195008.pdfIn PDF document text
  • http://www.gonouvellezelande.com/files/75604558524.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=what+is+trusted+credentials+on+androidPDF 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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