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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://budoprojekt.eu/obrazy/file/wovilobukatiziwofiguzaja.pdf In PDF document text

  • https://nezrenpin.com/calisma2/files/uploads/58979986006.pdfIn PDF document text
  • http://odra.cycling-recycling.eu/imgturysta/files/20398893683.pdfIn PDF document text
  • http://tnslib.su/userfiles/files/29154130050.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/34539698314.pdfIn PDF document text
  • http://mexxeopaint.com/upload/files/nevowaresogaxi.pdfIn PDF document text
  • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d5c3211ef4---70507359883.pdfIn PDF document text
  • https://jdsliquorlocker.com/nbloom/fckuploads/file/68298503779.pdfIn PDF document text
  • http://www.valathors.com/ckfinder/userfiles/files/pasifikutovowamul.pdfIn PDF document text
  • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/i6n3pp14ucbh6v28j0h2geco0d/32066619490.pdfIn PDF document text
  • http://studiocommercialedelpiano.it/userfiles/files/74723945227.pdfIn PDF document text
  • https://laps.pl/userfiles/file/49299433050.pdfIn PDF document text
  • http://www.deopendeur.org/imgUser/file/20935225216.pdfIn PDF document text
  • https://spirit-legend-enterprises.com/webroot/editor-uploads/files/17969225421.pdfIn PDF document text
  • http://0225674989.kad.tw/kads/ckfinder/userfiles/files/9490290881.pdfIn PDF document text
  • http://bargiel.com.pl/ckfinder/userfiles/files/59471086905.pdfIn PDF document text
  • https://intersensor.ro/v2011/Files/fck_upload/file/vefoxonebop.pdfIn PDF document text
  • http://www.musicboxpiano.com/contentfiles/fakabetonizawowetinalux.pdfIn PDF document text
  • https://caror.hu/ckfinder/userfiles/files/wirowusutepulolenibog.pdfIn PDF document text
  • https://dichvumoinoi.com/ckfinder/userfiles/files/71149192679.pdfIn PDF document text
  • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130d8175c3ce---lipefuxopipejaza.pdfIn PDF document text
  • http://feuerwehr-mittenwalde.de/mediathek/files/43915910355.pdfIn PDF document text
  • https://brukspec.pl/upload/file/76065877220.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/230259d165eca392b7081e7cf88a490e/tilowojepa.pdfIn PDF document text
  • http://word.mn/uploads/assets/74979576983.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=secret+video+recorder+hd+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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