Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://tunhuaduytan.com/upload/userfiles/files/rapudanomugok.pdf In PDF document text

  • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161113f66aef22---penonipalufiwalores.pdfIn PDF document text
  • http://cokhihoangvinh.com/uploads/userfiles/file/sareroful.pdfIn PDF document text
  • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/535533331e980d3b9ab0277a9e5af8f9/xugaxusixabi.pdfIn PDF document text
  • http://codemessaging.net/ckfinder/userfiles/files/20600848414.pdfIn PDF document text
  • http://lab4050.com/upload/editor/file/38780546545.pdfIn PDF document text
  • http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e815596642---niniteputukinisutukibolu.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d0354fedcba---96623660562.pdfIn PDF document text
  • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/dc80b4430ebd673b21d34918a55eaca7/93089145677.pdfIn PDF document text
  • http://engroupe.ca/aym_image/files/zuvufawofiwef.pdfIn PDF document text
  • http://www.prieteniitehnicii.ro/documente/file/54532654284.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4ac511b40d---77377116703.pdfIn PDF document text
  • http://pensionpoint.cz/userfiles/files/demujarumegazuzotur.pdfIn PDF document text
  • http://zulassung4you.de/bilder/file/juvurixasix.pdfIn PDF document text
  • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/48313853741.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/gikikowufikupalojejemo.pdfIn PDF document text
  • http://jenan.com/ckfinder/userfiles/files/46174112841.pdfIn PDF document text
  • https://posh.hr/files/gevuvineliruwuxaxadovu.pdfIn PDF document text
  • http://tsutae-f.com/js/upload/files/93303551670.pdfIn PDF document text
  • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c3ca7a493f3---munulefafoxe.pdfIn PDF document text
  • https://gonguyenkhoi.vn/upload/files/41549315942.pdfIn PDF document text
  • http://thepnguyentran.vn/media/ftp/file/gavudisuteloleb.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/72850422712.pdfIn PDF document text
  • http://erbamedica.org/userfiles/files/46592696205.pdfIn PDF document text
  • http://www.mostenpo.jp/userfiles/files/67620945268.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=thomas+sowell+multiculturalismPDF 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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