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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://justsayhi365.com/uploads/file/13638227176.pdf In PDF document text

  • http://alrehabourhome.com/userfiles/files/walimukimoruvamesejex.pdfIn PDF document text
  • https://299-45.com/CKEdit/upload/files/51664002864.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/xewajutuzuzadupenuzasa.pdfIn PDF document text
  • http://piazzademarini3ge.com/userfiles/files/70293213909.pdfIn PDF document text
  • http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rapasewexo.pdfIn macro / runtime command snippet
  • http://msmzizkov.cz/data/dokumenty/42793580707.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/78747710490.pdfIn PDF document text
  • http://stapper.de/sites/default/files/userfilesfile/51280396543.pdfIn PDF document text
  • http://ninda.vn/userfiles/files/15661144168.pdfIn PDF document text
  • https://abofahed.com/userfiles/file/99792575281.pdfIn PDF document text
  • http://sushistoryus.com/uploads/files/11230418041.pdfIn PDF document text
  • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/ff2ebbb082b52fae4b5cf08ab5e1f032/33790952875.pdfIn PDF document text
  • https://tese.in/ckfinder/userfiles/files/65080719669.pdfIn PDF document text
  • http://abhinavabhishad.org/userfiles/file/41692267204.pdfIn PDF document text
  • https://powerliteaac.com/userfiles/file/renagerape.pdfIn PDF document text
  • https://ichapps.peaceofworld.com/ichapps/ckeditor-ckfinder-integration/uploads/files/34377259020.pdfIn PDF document text
  • http://agronlogistics.com/userfiles/files/zujawin.pdfIn PDF document text
  • http://imhyuk.com/imhyukeditor/userfile/file/65230509535.pdfIn PDF document text
  • http://jljemc.com/upload/files/97148360450.pdfIn PDF document text
  • https://shindah.com/images/ckeditor_img/files/nejizinozijalufitevawok.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/306574ebf301e986168dc5b2c91f6315/muzufumewuvoduwovitiw.pdfIn PDF document text
  • http://planao.com/ckfinder/userfiles/files/12162764738.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=4+elements+apkPDF 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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