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 https://pistant.ru/uplcv?utm_term=android+sms+restore PDF link annotation

  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/gibudowuluzugemokanixamu.pdfIn PDF document text
  • https://canionglobal.com/FCKeditor/file/vilixogojef.pdfIn PDF document text
  • http://cgmorenanews.com.br/ckfinder/userfiles/files/16693753904.pdfIn PDF document text
  • http://pretaporter-pegah.com/userfiles/file/30599607209.pdfIn PDF document text
  • https://rt-totaalafbouw.nl/userfiles/file/mapezixepasajebal.pdfIn PDF document text
  • http://zhouzhuanx.com/v15/Upload/file/2021910112411190.pdfIn PDF document text
  • http://medwin.kr/userData/board/file/wekagedukevapavebad.pdfIn PDF document text
  • http://xn--365-pn7mwb654m2qn.com/ckupload/files/53798798158.pdfIn PDF document text
  • http://home-hj.com/up_photo/file/44084167725.pdfIn PDF document text
  • http://www.videobezopasnost.ru/ckfinder/userfiles/files/giwezujelipimijob.pdfIn PDF document text
  • http://mweb.cz/images/file/57180929251.pdfIn PDF document text
  • https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/juwodadiki.pdfIn PDF document text
  • https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/renovepawimogiwolofagudak.pdfIn PDF document text
  • https://phoenixturkey.com/upload/ckfinder/files/835658152.pdfIn PDF document text
  • http://tt-ural.su/admin/ckfinder/userfiles/files/70920014792.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/16139da8b64d01---fowipa.pdfIn PDF document text
  • https://8cj2aja7-8mxb.com/contents/files/mepiti.pdfIn PDF document text
  • http://aiswaryamatrimonials.com/fck_uploads/file/bituwofomejulej.pdfIn PDF document text
  • http://jx4d.com/userfiles/file/mukabekil.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16132ec8f20c6e---45234493672.pdfIn PDF document text
  • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/161307dfb6b520---moxaradevuxigagozigazaj.pdfIn PDF document text
  • https://joebalogh.ro/imagini_ws/28540275252.pdfIn PDF document text
  • http://appartenvue.net/appart/upload/images/66219470817.pdfIn PDF document text
  • http://www.mueblesgamez.com/ckfinder/userfiles/files/xewokufizudev.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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