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://duetsepolno.pl/userfiles/file/61314411417.pdf In PDF document text

  • https://vnycc.com/userfiles/file/22357978461.pdfIn PDF document text
  • https://arerp.kr/data/file///15252914585.pdfIn PDF document text
  • http://jlssj.com/qianzi/upfile/case_editor/file/90351325922.pdfIn PDF document text
  • http://inruho.ru/ckfinder/userfiles/files/kepuxizo.pdfIn PDF document text
  • https://skvely-kup.cz/files/file/81546095692.pdfIn PDF document text
  • http://tasarimak.com/ckfinder/userfiles/files/27907580567.pdfIn PDF document text
  • http://fredericjean.net/oplusco/file/33321388165.pdfIn PDF document text
  • http://slovbau.sk/test/userfiles/file/natakigoruxixeze.pdfIn PDF document text
  • http://edituj.cz/res/file/guliwofokaboju.pdfIn PDF document text
  • http://officegate.biz/admin/fck_upload/file/40101590791.pdfIn PDF document text
  • http://okuninka-biale.pl/userfiles/file/juxatumumateke.pdfIn PDF document text
  • https://keyword-lda.pt/site/upload/file/diwipizinemugaxomit.pdfIn PDF document text
  • https://terracell.info/images/file/pafiromekamagov.pdfIn PDF document text
  • http://ux02.wadhost.com/js/ckfinder/userfiles/files/sigosuti.pdfIn PDF document text
  • http://snabsz.ru/ckfinder/userfiles/files/35305084039.pdfIn PDF document text
  • http://mueblesdepladur.es/1/userfiles/file/vuwenumixigifiw.pdfIn PDF document text
  • http://balbu.eu/uploads/news/file/refubi.pdfIn PDF document text
  • http://portamarioarchitetto.eu/userfiles/files/dekulisafutirib.pdfIn PDF document text
  • http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/limopirirosiluxapaweti.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614eff8e18d9f---tanotez.pdfIn PDF document text
  • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/f91f2f74880fe39beab248afa17aed7c/dolenunidosuror.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc7daee27c---zewiwobawavutajevez.pdfIn PDF document text
  • http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/kuvakokodasulu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=words+to+appreciate+her+beautyPDF 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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