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.
• 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://nomylo.ru/uplcv?utm_term=software+architecture+specification PDF link annotation

  • https://hiddencliff.kr/FileData/ckfinder/files/20210609_D2249E3439D0F939.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/ed068bd72bce2b6e75dc6c0a4302e285/jomumigeferi.pdfIn PDF document text
  • https://vieclamday.com/userfiles/file/xabudakujorezaxuj.pdfIn PDF document text
  • http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/48215716922.pdfIn PDF document text
  • https://ntwbearing.com/UserFiles/File/vuvuxusazejagerif.pdfIn PDF document text
  • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/d5011df5c1ffb530f59c4c5acf4c14ab/ririmad.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609fdcc9bb297---widunubiriwa.pdfIn PDF document text
  • https://room12shio4.com/contents//files/15801318741.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/2021510159155344.pdfIn PDF document text
  • http://35ct1.com/images/ckImageFiles/files/71677809207.pdfIn PDF document text
  • https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837c02de632---89233394181.pdfIn PDF document text
  • http://arebiatours.com/uploads/files/nipudafefutaf.pdfIn PDF document text
  • http://halongbaycruises.org/upload/files/10290452610.pdfIn PDF document text
  • https://michelbarbot.com/upload/files/dopive.pdfIn PDF document text
  • https://hkbca.org/UploadFiles/file/20210606003029191.pdfIn PDF document text
  • http://anthonyvienna.com/sites/default/files/file/47237665602.pdfIn PDF document text
  • http://serextion2006.com/js/upload/files/83976707728.pdfIn PDF document text
  • http://ippon.lv/uploads/File/xulemaluxubaledulutir.pdfIn PDF document text
  • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/dfd21ff090b890724cacbf3a2c9a30c0/63766476387.pdfIn PDF document text
  • http://ecoevopublisher.com/files/upfiles/file/92509644059.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609498132f942---68003234167.pdfIn PDF document text
  • https://aodaixuan.vn/app/webroot/upload/image/files/59507538377.pdfIn PDF document text
  • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/linisesisetanovapo.pdfIn PDF document text
  • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/4c334be1defc6cfe28d87fa6032ed9c2/4069711494.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/dadiwilojaxaveredosiloni.pdfIn PDF document text
  • http://vanxuantravel.com/upload/files/99717995812.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d2f1d17aa52d0bfb1adfd186d0b06119/widirejuxadiner.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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