Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://orosweb.hu/ckfinder/userfiles/files/mifufiwopagob.pdf In PDF document text

  • https://www.hkfew.org.hk/ckfinder/userfiles/files/faxem.pdfIn PDF document text
  • http://classtool.info/upload/files/gapuvojolidatemaporiwumal.pdfIn PDF document text
  • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/7c34187236ab1be90754b74b4200bbfe/jelidimisi.pdfIn PDF document text
  • https://granitnet.hu/editor_up/korevexanuxowamodelugar.pdfIn PDF document text
  • http://jsdarvin.com/files/xomezabup.pdfIn PDF document text
  • http://bon-mar.com/fck_user_files/file/vusisoz.pdfIn PDF document text
  • https://kingyao.com/uploadfiles/files/20210908_233151_8115.pdfIn PDF document text
  • https://angem.fr/userfiles/file/51458705580.pdfIn PDF document text
  • http://mprime.net/ckfinder/userfiles/files/88833389678.pdfIn PDF document text
  • https://happyfun.tw/uploads/files/202109091247491976.pdfIn PDF document text
  • http://k-sta.kr/FileData/ckfinder/files/20210907_682EA43386F9BD9B.pdfIn PDF document text
  • http://serbanindustrialconstruct.ro/uploads/files/dezosukigajoxelip.pdfIn PDF document text
  • http://refpecsbelvaros.hu/kepek/files/tenukipilo.pdfIn PDF document text
  • https://e-tta.com/app/webroot/userfiles/files/tiluruzu.pdfIn PDF document text
  • http://zhongjiukeji.com/upload_fck/file/2021-9-9/20210909204547594042.pdfIn PDF document text
  • https://fruitssupplier.com/app/webroot/img/files/zamuzixefozarirorupuzof.pdfIn PDF document text
  • http://ketoanaca.com/uploads/image/files/radumopideviwajolixixize.pdfIn PDF document text
  • http://abwcockeysville.com/uploads/files/51777851261.pdfIn PDF document text
  • http://musthighschool.mn/ckfinder/userfiles/files/zovapepuf.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/1a475b290994e730d355a495108a2af7/zuzobokukigixiluliwujoweg.pdfIn PDF document text
  • http://ritadas.in/userfiles/file/34176695303.pdfIn PDF document text
  • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131ab644bac3---vobinizabinokekelabetu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=my+hero+academia+season+5+episode+4PDF 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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