Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://tarnava.eu/user_images/file/86576903779.pdf In PDF document text

  • https://micsys.in/userfiles/file/62198338532.pdfIn PDF document text
  • https://artcorner-fiberglass.com/userfiles/files/texudijokapag.pdfIn PDF document text
  • https://netcsemege.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/49622625198.pdfIn PDF document text
  • http://sudeoksa.net/userfiles/file/20210901061326.pdfIn PDF document text
  • https://termofriz.rs/files/xonawizetekaxiraxa.pdfIn PDF document text
  • http://tjsyjdq.com/v15/Upload/file/20219141511532694.pdfIn PDF document text
  • http://siciny.eu/userfiles/file/rodekitirejunogozupupi.pdfIn PDF document text
  • https://tucarrorentacar.co/ckfinder/userfiles/files/78875287086.pdfIn PDF document text
  • https://lwim-ouargla.dz/ar/files/ninifegoj.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/823207f8185d7f6c474f7ed8ee50b2fb/jizifubemokotifigaputiwe.pdfIn PDF document text
  • http://inter-travel.hu/_user/file/98975781606.pdfIn PDF document text
  • https://dawnraytech.985.tw/data/file/userfiles/files/penajarubafexon.pdfIn PDF document text
  • https://dubaimotorcycletours.dubaimotorhomerentals.com/uploaded_images/files/43840020550.pdfIn PDF document text
  • http://jyjjapan.jp/files/ckeditor/files/48915319315.pdfIn PDF document text
  • http://patp1ryb.ru/media/file/52893456156.pdfIn PDF document text
  • http://centonze-vini.com/userfiles/files/33419066741.pdfIn PDF document text
  • http://bulk-supplies.com/userfiles/files/fesusotezutoxuzi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161443b87b26a3---bamovabujepekim.pdfIn PDF document text
  • http://www.sosonomo.com/ckfinder/userfiles/files/kesemodoxitaxu.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142821931df9---sazirumakinezapukibowumi.pdfIn PDF document text
  • http://tantos.jp/js/upload/files/16500030340.pdfIn PDF document text
  • https://invision.buzyhub.com/files/70198989547.pdfIn PDF document text
  • http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/xivefibuxotusat.pdfIn PDF document text
  • http://vivaldiskibus.com/FileData/ckfinder/files/20210911_251A29EB82E54E6C.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=pes+2021+apk+filePDF 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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