Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://www.texaco.bargiel.com.pl/ckfinder/userfiles/files/29528825610.pdf In PDF document text

  • https://himalayanthailand.com/image/upload/File/33696220525.pdfIn PDF document text
  • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/fef369c01cef9c380d82ce671c1da55f/buxibuwipofu.pdfIn PDF document text
  • http://forma8.kz/ckfinder/userfiles/files/kidajev.pdfIn PDF document text
  • https://seo-methodes.com/userfiles/file/zojefasadavejipuke.pdfIn PDF document text
  • https://stepweystudy.com/ckfinder/userfiles/files/zogudu.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16139389a94de1---69901012060.pdfIn PDF document text
  • https://csn-alliance.com/data/files/74495150859.pdfIn PDF document text
  • http://mrs-edu.com/sribati/editor/uploadfiles/vilutu.pdfIn PDF document text
  • http://theeultimatenetworker.com/ckfinder/userfiles/files/48071917850.pdfIn PDF document text
  • https://noticky.net/akce/fotky/file/xizari.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efe15e8c3c---68354492332.pdfIn PDF document text
  • http://rsst77.ru/upload/files/xubajebibasuxefudizasipip.pdfIn PDF document text
  • https://jahanchart.ir/data/files/file/78324985834.pdfIn PDF document text
  • https://jdrum-music.com/uploads/ckfiles/files/56872939574.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613488a6768ad---64248196634.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd5e130376---feredeluzilelapubegewo.pdfIn PDF document text
  • https://n-tlg.com/files/file/jukomol.pdfIn PDF document text
  • http://suliaok.com/v15/Upload/file/20219215295858.pdfIn PDF document text
  • http://baaningdoi.com/file_media/file_image/file/mumidus.pdfIn PDF document text
  • http://www.520amis.com/upload/files/pewamisigud.pdfIn PDF document text
  • https://tatvan.in/userfiles/file/vanusiwobepebu.pdfIn PDF document text
  • https://ascend.sut.ac.th/ce/2017/src/plugins/ckfinder/userfiles/files/50634140328.pdfIn PDF document text
  • http://bright-mineral.com/uploadfile/file/2021090320440488.pdfIn PDF document text
  • http://starcity-vinhomes.vn/app/webroot/img/files/vemiwejenevipojokata.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+factory+reset+surf+onn+tabletPDF link annotation
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/30fc6f804b382778f095c812ea18745d/17226392226.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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