Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://oniceh.ru/uplcv?utm_term=wii+supported+sd+cards PDF link annotation

  • http://hezhengwy.com/js/fckeditor/editor/filemanager/connectors/php/connector.phpUpFile/202109/file/20210928_123731_187.pdfIn PDF document text
  • https://vanchuyenduongsat.vn/upload/files/31485045245.pdfIn PDF document text
  • https://dhins.com/testingsites/advantage_aviation/assets/media/file/63096007354.pdfIn PDF document text
  • http://abwalabamaave.com/uploads/files/gugixuvuvilevedulefazan.pdfIn PDF document text
  • http://redondoclassicburger.com/uploads/files/76118947895.pdfIn PDF document text
  • https://atcotourismtravel.com/userfiles/file/jurino.pdfIn PDF document text
  • http://cistenivytahu.cz/upload/file/liwawowonetuw.pdfIn PDF document text
  • http://wcsps.com.tw/ckfinder/userfiles/files/98479378034.pdfIn PDF document text
  • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/gelunukagunibumasiwojufi.pdfIn PDF document text
  • http://uralcomservis.ru/crn_fls/crn_files/wozigusuna.pdfIn PDF document text
  • http://myarrahnu.com/mo_images/files/60616025207.pdfIn PDF document text
  • http://restaurant-lyons.fr/userfiles/file/62170899555.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/50088866570.pdfIn PDF document text
  • http://hyswimpool.com/userfiles/43314182925.pdfIn PDF document text
  • https://jgranit.pl/userfiles/file/82278494134.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1615d130b3741e---54657526455.pdfPDF link annotation
  • https://pielinks.com/UserFiles/file/dimozawetonatawuj.pdfIn PDF document text
  • https://koratspring.com/upload/file/62877865622.pdfIn PDF document text
  • http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/jukinimakirarosal.pdfIn PDF document text
  • http://niezapominajkowo.eu/userfiles/file/11551268102.pdfIn PDF document text
  • https://fix2go.info/userfiles/file/26410873622.pdfIn PDF document text
  • http://uran-berlin.com/userfiles/file/294401246.pdfIn PDF document text
  • https://habibitours.com/ckfinder/userfiles/files/womirelatizazawonepikirow.pdfIn PDF document text
  • http://sambometal.com/dataroom/file/69792427150.pdfIn PDF document text
  • http://glovimex.com/uploads/ckfinder/files/batenebewigilizofesofo.pdfIn PDF document text
  • http://nguoigiupviec99.com/webroot/img/files/76753230012.pdfIn PDF document text
  • https://filetorme.com/upload/files/11831737237.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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