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.
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://nordicwalkingturak.hu/_user/file/batuxuburubemisunoxu.pdf In PDF document text

  • http://gangwonbnb.com/FileData/ckfinder/files/20210924_9805F6A39660B25B.pdfIn PDF document text
  • http://steelbo.com/uploads/admins/u0/files/20210917035827.pdfIn PDF document text
  • http://ciaomamma.hu/editor_up/lelotogemagotike.pdfIn PDF document text
  • http://ipceurope.be/assets/file/fufuladutexef.pdfIn PDF document text
  • http://pelejas.com/IMAGENS/CKFINDER/files/dalosilolegi.pdfIn PDF document text
  • https://kominove-centrum.cz/media/files/file/wajifabivamujuzemebosi.pdfIn PDF document text
  • http://darangyi.com/userData/board/file/10162823817.pdfIn PDF document text
  • http://jplus-ag.com/upload/files/BodyFile__61439850D626D.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b674c3eca4---viwomefovabu.pdfIn PDF document text
  • http://mn-print.ru/ckfinder/userfiles/files/mofekeferusudip.pdfIn PDF document text
  • http://odesignlab.ru/admin/ckfinder/userfiles/files/23587746973.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/famali.pdfIn PDF document text
  • http://2990592.ru/ckfinder/userfiles/files/lanunixusatugug.pdfIn PDF document text
  • https://masterjobintl.com/ckfinder/userfiles/files/rinotezexajinumimedikumif.pdfIn PDF document text
  • http://marcelponjee.nl/ponjeefiles/file/kodokazinegegesira.pdfIn PDF document text
  • http://noithatdangcap.vn/app/webroot/uploads/files/17251243388.pdfIn PDF document text
  • https://zakarpattya-tour.com/upload/25280391987.pdfIn PDF document text
  • https://parlagame.com/calisma2/files/uploads/lojowigu.pdfIn PDF document text
  • https://macroedunet.com/userfiles/file/94084953730.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/00871bdc639514c5bc8ac463f817a10e/sukeko.pdfIn PDF document text
  • http://pacemakerpressintl.com/uploads/assets/file/pazifazozota.pdfIn PDF document text
  • http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/bofipoletusif.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=samurai+jack+game+download+apkPDF link annotation
  • https://mediaget.com/userfiles/files/nerujifabisajulaxeta.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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