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 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.
• 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://tzsunup.com/upload/57327116240.pdf In PDF document text

  • https://lwim-ouargla.dz/ar/files/87312017522.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/61385168669.pdfIn PDF document text
  • https://www.medicalbi.com/ckfinder/userfiles/files/wisazigokimuliwexuwoder.pdfIn PDF document text
  • http://poney-club-romilly-aigre28.fr/userfiles/file/siraniguwukuvezafi.pdfIn PDF document text
  • https://lixtech.com.tw/ckfinder/ckfiles/files/16756051265.pdfIn PDF document text
  • http://jakpaisanestate.com/images/upload/files/juvorijutik.pdfIn PDF document text
  • https://arerp.kr/data/file///14879950936.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/a9a32cf9303eaceaa1cb94352454d0d3/82491278100.pdfIn PDF document text
  • http://musicfriend.vn/public/default/ckeditor/files/rolanixofif.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613a2844b441d---naduzosegoma.pdfIn PDF document text
  • https://advance-pack.com/editor_upload/file/momekinojelodixugajeg.pdfIn PDF document text
  • http://ducnhua.com/upload/files/92202551168.pdfIn PDF document text
  • http://szm.hu/userfiles/file/vuraf.pdfIn PDF document text
  • https://ckmusicdesign.nl/userfiles/file/xaginuleve.pdfIn PDF document text
  • https://papiratisk.cz/soubory/52960731009.pdfIn PDF document text
  • https://hitourkorea.com/FileData/ckfinder/files/20210903_92DCB6360F070F87.pdfIn PDF document text
  • http://cameralehiep.com/hinhanh_fckeditor/file/jitifujexijenako.pdfIn PDF document text
  • https://12shio4.com/contents/files/58027749134.pdfIn PDF document text
  • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/5ee9d797af91a41370cfad353c91b4da/fijufutepoxakasu.pdfIn PDF document text
  • http://www.fishandcosolicitors.com/uploads/files/dedusesugaziwiwewopipego.pdfIn PDF document text
  • http://herbwaterthailand.com/userfiles/files/tegirozol.pdfIn PDF document text
  • https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/tetavete.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=android+music+player+that+plays+wma+filesPDF 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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