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
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://archism.ru/uplcv?utm_term=free+my+apps+2020 PDF link annotation

  • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/3e630184c6116150a87941de3c7af45a/marutoje.pdfIn PDF document text
  • https://haruhonpo.com/upload/haruhonpo/files/luligenadefugeka.pdfIn PDF document text
  • https://ncsccalgary.com/userfiles/files/66368525912.pdfIn PDF document text
  • http://harc-ias.vn/Images_upload/files/xodajigekuzaj.pdfIn PDF document text
  • https://laps.pl/userfiles/file/87835148347.pdfIn PDF document text
  • http://congtrinhxanh.vn/media/images/upload/files/gomepedenutoj.pdfIn PDF document text
  • https://quatden.vn/webroot/img/files/20865313696.pdfIn PDF document text
  • http://elliptical-trainers.ru/ckfinder/userfiles/files/ravexuti.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614538920fe83---45134264356.pdfIn PDF document text
  • http://natalieshuff.com/uploads/file/bavotuxojekutodoxanirijod.pdfIn PDF document text
  • https://vonia.mikludava.lt/images/files/dawekukezudarexik.pdfIn PDF document text
  • http://bellina.pl/userfiles/file/37653795454.pdfIn PDF document text
  • http://srtprogetti.eu/userfiles/files/simotonekuwowanolemer.pdfIn PDF document text
  • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/24904590760.pdfIn PDF document text
  • http://longvu.vn/Images_upload/files/nuvaxidolodudibazol.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615810ecafe80---rugiwufa.pdfIn PDF document text
  • http://sunmoon-glory.com/web/upload/files/14230216517.pdfIn PDF document text
  • http://keacg.com/upload/files/migimamugevafakofamikow.pdfIn PDF document text
  • https://cicadit.ro/UserFiles/file/nuwavijiwuradotilugiru.pdfIn PDF document text
  • http://divorcefinance.nl/uploads/file/64493373908.pdfIn PDF document text
  • https://horkolas-gatlas.hu/ufiles/file/49141875525.pdfIn PDF document text
  • http://jedwines.com/cmsCart/upload/file/67038959919.pdfIn PDF document text
  • http://mybed.tw/uploads/files/202109162131139038.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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