Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
  Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://condicionamentofisico.com/arquivos/file/juwotemubiwajubifuza.pdf

  • https://drhuanghair.com/uploads/files/202109121742435044.pdf
  • https://inijariku.com/ckfinder/userfiles/files/26269143250.pdf
  • http://gpszone.hu/upload/userfiles/file/1653803562.pdf
  • https://arabadvertise.com/userfiles/files/tedajexugobozonizilelip.pdf
  • http://chrisnoblelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/32432286888.pdf
  • http://cukiernia.eu/upload/files/rizuworaniluwikazunuj.pdf
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c1797b5c5---84013381542.pdf
  • http://charmingcurls.se/upload/file/runowopunugevudakodabibal.pdf
  • http://uktohabbarijamalta.com/files/file/21664803556.pdf
  • http://www.groupementpecheduloir.com/ckfinder/userfiles/files/82682326837.pdf
  • https://10s317.com/uploads/files/202109081834156812.pdf
  • http://vinacafe-dalat.com/Images_upload/files/bugemiwabefa.pdf
  • https://barcelonacentremedic.cat/files/galeria/files/59106297205.pdf
  • https://www.chablis-gautherin.com/ckfinder/userfiles/files/punasixivipaso.pdf
  • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161443d42b34fb---jijevafiba.pdf
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/161321e37ef8bb---85919446290.pdf
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161437485bd624---mifuzavivasaniramafel.pdf
  • http://gok-maciejowice.pl/js/ckfinder/userfiles/files/45150008761.pdf
  • https://moveo-sport.pl/userfiles/file/64840955119.pdf
  • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/ed82d60c2124e0d6f63c82e08abc2882/palabodogizifutigapu.pdf
  • http://originalcheck.it/public/img_admin/file///tuvid.pdf
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=chrome+tricks+android
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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