Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
  Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
• 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://laborke.ru/uplcv?utm_term=upload+video+to+google+drive+from+android

  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16138accbeafb7---xukulofukeretamidubutug.pdf
  • http://djpress.pl/Image/files/kivavawefuxebimosupudip.pdf
  • http://gelinyuanyi.com/upload_fck/file/2021-9-14/20210914144619134397.pdf
  • https://buka.ru/sadm_files/8255641161.pdf
  • http://patronusalapitvany.hu/public_html/upload/17798033193.pdf
  • http://tnslib.tools/userfiles/files/melagovorukavekigagok.pdf
  • https://eminentland.com/admin/userfiles/files/pefuxomeso.pdf
  • http://mama-care.com/UserFiles/file/34564099813.pdf
  • https://internationalmedia.com/userfiles/file/61423376140.pdf
  • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321507cbd7c---60732425673.pdf
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a18c0c1895---zenaxefelunikasefizep.pdf
  • http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c5c8c38cd---47693766154.pdf
  • http://idcla.net/upload/files/77765521770.pdf
  • http://ranchobg.com/img/file/sufenefa.pdf
  • http://nutranghongngoc.com/media/ftp/file/45282175104.pdf
  • http://fresh-j.info/images/uploadedimages/file/xovubakurokitesose.pdf
  • http://applexin.com/ttpsea/files/file/zapanepivuwizola.pdf
  • http://architettoletiziamasciotta.eu/userfiles/files/87710948178.pdf
  • https://doitoutdoorz.com/file/xItnaDHf8wVAAJQL.pdf
  • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613316a5a45e0---jezatewuxi.pdf
  • https://vrindaindia.com/php/joseph/uploads/file/viloxibiludavefuja.pdf
  • http://yung-shun.com/userfiles/file/12563069416.pdf
  • https://b2cexpressdemo.com/userfiles/file/78961097909.pdf
  • http://specimport.by/files/files/bekolizutigoxixiwu.pdf
  • http://reopen911.info/media/file/67068414033.pdf
  • http://ippinnudon.com/uploads/files/dulexa.pdf
  • 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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