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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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.
• 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://yingzhaoliuart.com/upload/file/zuvevim.pdf In PDF document text

  • http://clarksville.net/wysiwygfiles/file/27728344680.pdfIn PDF document text
  • https://propertiproperty.com/Uploads/userfiles/files/sakewizotewevot.pdfIn PDF document text
  • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614004813c0c5---xubofajuferofekaxe.pdfIn PDF document text
  • http://211.129.1.225/system/ckfinder/userfiles/files/zafizid.pdfPDF link annotation
  • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/0s8hc3re64rp0k1q01u9hjphm6/82526162658.pdfIn PDF document text
  • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/80f41a79d6bc12b8aae349dbf9a08770/pufufafud.pdfIn PDF document text
  • http://ucinnovation.ru/admin/ckfinder/userfiles/files/18449933019.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/d4d4f5ef356a6a0c83b56ca18c637b81/39610695651.pdfIn PDF document text
  • https://noddy.nu/images/file/pojulagejufezevipesuro.pdfIn PDF document text
  • http://meandnetworking.com/ckfinder/userfiles/files/fujavujopoma.pdfIn PDF document text
  • https://aspit.ro/imagini_ws/pijotul.pdfIn PDF document text
  • http://galaxy-training.com/userfiles/file/69067227540.pdfIn PDF document text
  • http://yushendesign.com/images_fck/file/1630952822.pdfIn PDF document text
  • http://sinoorchids.com/image/file/vitel.pdfIn PDF document text
  • http://bibliotekaludwin.pl/img/upload/files/34833584775.pdfIn PDF document text
  • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/sudolun.pdfIn PDF document text
  • http://lotusromeo.fr/app/webroot/files/userfiles/files/menuxudodobijupiv.pdfIn PDF document text
  • http://yaqeen-eg.com/userfiles/file/15046286030.pdfIn PDF document text
  • http://zbigniewrodak.pl/galeria/file/99482183375.pdfIn PDF document text
  • http://chinalanpa.com/images/upload/File/tobopewavinuretuf.pdfIn PDF document text
  • https://spheresignal.com/app/webroot/userfiles/files/59484284120.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139480547112---laduzumitikiluforuwovin.pdfIn PDF document text
  • http://adfaveo.com/image/files/20210917_165658.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=best+chromecast+app+for+androidPDF 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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