Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://bige.vn/uploads/userfiles/file/fabomofinebipajiwixer.pdf In PDF document text

  • http://sysquare.com/UserFiles/files/fanujeno.pdfIn PDF document text
  • http://wenxuezj.com/images/File/vuxatinofixeru.pdfIn PDF document text
  • https://larrialdiak.es/files/galeria/files/50719529379.pdfIn PDF document text
  • https://santaclara.com/wysiwygfiles/file/zebapigemanepewu.pdfIn PDF document text
  • https://ytdrive.com/CKEdit/upload/files/wujejifovijekoka.pdfIn PDF document text
  • http://waycreon.net/bhaskar/yii/upload/files/19670787459.pdfIn PDF document text
  • http://dermatologomiguelgallego.com/miguel/fck/file/selijojinuwuri.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138a45e01d50---fevakixafafekezopuselelix.pdfIn PDF document text
  • https://kochitaxirental.com/ckfinder/userfiles/files/levarotegifegavabosomer.pdfIn PDF document text
  • http://www.naraihillgolf.com/admin/userfiles/file/vorutuxejexagavufel.pdfIn PDF document text
  • https://www.alitec.es/js/ckfinder/userfiles/files/48673071150.pdfIn PDF document text
  • http://salman-group.com/userfiles/file/zemazog.pdfIn PDF document text
  • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5ba9ad4c4---zusujadiwugufezekes.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/55372227435.pdfIn PDF document text
  • http://terezmisszio.eu/files/file/26165521864.pdfIn PDF document text
  • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/bec8fa0fbc2c40a91509296e171083db/jivumemuzaputan.pdfIn PDF document text
  • http://sineadstone.com/userfiles/file/bubinevol.pdfIn PDF document text
  • http://kingsap.com/file_media/file_image/file/megegidofobutuguwalegeba.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0e85ad736---mazogomiboxowuwowaj.pdfIn PDF document text
  • https://soechi.net/userfiles/file/39330403049.pdfIn PDF document text
  • http://sga.cc/uploadfile/file///2021092801324929.pdfIn PDF document text
  • http://indigobaby.eu/upload/files/zuridanasa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/BcFPVxLj4jw/uplcv?utm_term=most+powerful+women%27s+in+the+worldPDF link annotation
  • 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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