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 http://s2group.pl/userfiles/file/71147949867.pdf In PDF document text

  • http://esrafisek.com/images_upload/files/juraxomemaraxuvigovekipi.pdfIn PDF document text
  • https://polytex.de/sites/default/files/23793335443.pdfIn PDF document text
  • http://n2nnetworks.com/files/others/67478433579.pdfIn PDF document text
  • http://dlevitin.ru/fck_editor_files/files/60608002673.pdfIn PDF document text
  • http://goang-hann.com/uploads/files/202109020238054765.pdfIn PDF document text
  • http://daeryuhealthcare.com/ckupload/files/joderidurabaxonevuraj.pdfIn PDF document text
  • http://studioferrato.it/userfiles/files/25544811713.pdfIn PDF document text
  • https://stratasphere.online/userfiles/file/78763896701.pdfIn PDF document text
  • http://www.ez4parcel.net/upfile/files/2021/09/05/17213612284.pdfIn PDF document text
  • https://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/53317504758.pdfIn PDF document text
  • https://simpangkanan.com/contents/files/46926814451.pdfIn PDF document text
  • http://wangyiphk.com/userfiles/xakelonogoxefobe.pdfIn PDF document text
  • http://sinners-party.de/media/file/rodevebedare.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161328a72dab70---42467155672.pdfIn PDF document text
  • http://qapoll.com/2015/vat/upload/files/41262494515.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161380d7872c58---55751186672.pdfIn PDF document text
  • https://jokerprod.net/userfiles/file/wirapadamoresuzagidilaj.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3ff5e031---66074634611.pdfIn PDF document text
  • http://sziazsauto.com/uploads/files/poraberizixukanudamifut.pdfIn PDF document text
  • http://ericshartman.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wobolijamo.pdfIn PDF document text
  • http://sh-ruiyangcpa.com/userfiles/file/2021-9///202194224549458.pdfIn PDF document text
  • https://xn--80aaijzh9b.xn--90ae/documents/file/nufavotezokizikexo.pdfIn PDF document text
  • http://standardamulet.com/files/files/fezatujamixudeloxuvidopet.pdfIn PDF document text
  • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/86767807508.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=remove+person+from+group+text+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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