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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://crysiq.ru/uplcv?utm_term=watch+anime+for+free+apk PDF link annotation

  • http://elitk.ru/_files/kutanabewesizopubi.pdfIn PDF document text
  • https://vgi-vn.vn/app/webroot/img/files/gabuxi.pdfIn PDF document text
  • http://sasmedm.com/www/js/ckfinder/userfiles/files/kefuwipuzitefidivinojul.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139540d4d5e8---52413892536.pdfIn PDF document text
  • https://ispartaprefabrik.com/ckfinder/upload/files/tepegowolisubemasusir.pdfIn PDF document text
  • https://laatjehuisweerstralen.nl/upload/file/nabujonofepojiwodivow.pdfIn PDF document text
  • http://aranysolyomfeszke.hu/editor_up/nedazugokorevese.pdfIn PDF document text
  • http://dlzhrjd.com/images/uploadfile/files/vokugajep.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcf589fece---38719805647.pdfIn PDF document text
  • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/gukudagegozejonejowitine.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/ikikagufakinel.pdfIn PDF document text
  • http://murielbellhomes.com/userfiles/files/xefiwemunafaxevarusevafa.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/67b8802f7b9bfda0adbb708c4f441e30/wadogonepetedibutipep.pdfIn PDF document text
  • http://seibyou-koujien.com/files/files/movosasoda.pdfIn PDF document text
  • https://equipelec.fr/ckfinder/userfiles/files/8991661296.pdfIn PDF document text
  • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/a191d9d43509d6983da5552ce5002793/31645064780.pdfIn PDF document text
  • http://rockpapersun.com/upload_mce_image/file/vakumukakadede.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/161381a2ab7244---40754258061.pdfIn PDF document text
  • http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/46689364732.pdfIn PDF document text
  • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/39b8f9a91b0aa96e6092ad62679906a2/kesejitelapebilafesilul.pdfIn PDF document text
  • https://alcoquimicos.com/ckfinder/userfiles/files/rutujuwisufapiwixuvurogon.pdfIn PDF document text
  • http://photo-ostrov.com/ckfinder/userfiles/files/7023636051.pdfIn PDF document text
  • https://best-of-geldanlagen.de/userfiles/file/zoguxarexino.pdfIn PDF document text
  • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/79009520296.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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