Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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) or Microsoft license-boilerplate 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://yubit.co.za/YmrXLWy8?keyword=what%20is%20the%20best%20gps%20tracker%20app%20for%20iphone PDF link annotation

  • http://www.findvoters.com/userfiles/file/1580398054.pdfIn PDF document text
  • http://casopisfolklor.sk/assets/kcfinder/upload/files/gawodur.pdfIn PDF document text
  • https://mesofozup.weebly.com/uploads/1/3/5/3/135351624/a300f357bb.pdfIn PDF document text
  • https://excore.hu/ckfinder/userfiles/files/nofakogoxed.pdfIn PDF document text
  • http://baracenter.be/userfiles/file/zirulotarebimos.pdfIn PDF document text
  • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d53df7f2e2---vunesi.pdfIn PDF document text
  • https://wagabumin.weebly.com/uploads/1/3/4/6/134626067/6295849.pdfIn PDF document text
  • https://bashmak55.ru/ckeditor/kcfinder/upload/files/81343353758.pdfIn PDF document text
  • https://demo-calson.garment-pro.com/ckfinder/userfiles/files/buleja.pdfIn PDF document text
  • http://nage-z.com/ckfinder/userfiles/files/69993570831.pdfIn PDF document text
  • https://xesisawizes.weebly.com/uploads/1/3/1/6/131606125/ab0adf.pdfIn PDF document text
  • http://dobermanncz.eu/files/bedetefepanezuxewu.pdfIn PDF document text
  • https://nolulanulupu.weebly.com/uploads/1/3/1/3/131379612/ba56c513.pdfIn PDF document text
  • https://netaxodesu.weebly.com/uploads/1/3/4/3/134367037/8320359.pdfIn PDF document text
  • https://maxifabosogup.weebly.com/uploads/1/3/4/5/134526580/7385469.pdfIn PDF document text
  • https://pinababinazu.weebly.com/uploads/1/3/2/6/132695354/bevotagu.pdfIn PDF document text
  • http://bayanairag.com/uploads/userfiles/files/85973406717.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/hf1gosfknd82tn3vb08utbm10r/jeluxitadumufojofubolodor.pdfIn PDF document text
  • https://tedajurilazunu.weebly.com/uploads/1/3/0/7/130739962/rulorupumigameriw.pdfIn PDF document text
  • http://areopag-group.ru/sites/default/files/uploads/5176266121.pdfIn PDF document text
  • https://vubozunede.weebly.com/uploads/1/3/4/6/134685471/979f9.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/57def1290d2486e5cabd6975ddf9a9ac/48992584841.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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