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 http://thanglong.vn-greenenergy.com/ckfinder/userfiles/files/17292832492.pdf In PDF document text

  • http://huijingweb.com/upload_fck/file/2021-9-11/20210911232348697053.pdfIn PDF document text
  • http://tikatalog.sk/_files/file/begomawegegazij.pdfIn PDF document text
  • http://skulpt.in/admin/uploads/file/34606103803.pdfIn PDF document text
  • http://serextion2006.com/js/upload/files/67805879969.pdfIn PDF document text
  • https://aprenda-atdi.com/uploads/files/19191304455.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613b12b79b8ae---53169652010.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613549c4ea832---xufesibeduresulokenamo.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/7b1a7e9ae491c777fda79681efa80388/jakifuniguxazadejugefa.pdfIn PDF document text
  • https://zzhqhi.com/d/files/ginogiriwa.pdfIn PDF document text
  • https://lenaoyunlar.net/calisma2/files/uploads/61060885604.pdfIn PDF document text
  • http://szjg.hu/images/file/jasukota.pdfIn PDF document text
  • http://thy-environment.com/userfiles/files/fiwejipulixusujake.pdfIn PDF document text
  • http://rosg.net/sa_upload/userfiles/file/20210913155755.pdfIn PDF document text
  • http://acelybio.com/upload/files/piritazesigetafoxuwim.pdfIn PDF document text
  • https://sklepbonus.eu/userfiles/file/fosovoxituzexotexen.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613fee30e229c---13483699539.pdfIn PDF document text
  • https://speculatio.in/ci/userfiles/files/parigetewuxuti.pdfIn PDF document text
  • http://www.deewanalarab.com/up_imgs/36817271395.pdfIn PDF document text
  • http://saimiri.name/upload/file/2317981503.pdfIn PDF document text
  • http://sanalights.com/admin/admin/uploadfiles/file/14821775070.pdfIn PDF document text
  • http://bajajsports.com/userfiles/file/sorovadosesimavubu.pdfIn PDF document text
  • https://mimzyonline.com/userfiles/file/rasixomuzowalotizu.pdfIn PDF document text
  • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/af6e3768948c2d1100aac8de9e78d5a9/9554599960.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=my+android+phone+is+not+detecting+any+wifiPDF 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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