Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a71338e7153---18849779745.pdf In PDF document text

  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a98fa1bf13a---gixudufeseteduk.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/mmb47pkpaha64vpl1m4r8rhms1/panujujivi.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/a00005ab735c348049eeade1247e572b/tofetomeviruzevisozafozes.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160842e043cb10---49497482921.pdfIn PDF document text
  • https://cakenepal.com/userfiles/file/14964512953.pdfIn PDF document text
  • http://dharmapremipariwar.org/userfiles/file/81416849373.pdfIn PDF document text
  • https://yingzhaoliuart.com/upload/file/41385784560.pdfIn PDF document text
  • http://yesilderecine.com/admin/editor_resim/file/13433375731.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16097aedc1fdc0---7731284462.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/24d6dd596bc4a1e80e72cf995a3a9269/72413129059.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160765db1614d4---96011494189.pdfIn PDF document text
  • http://global-insurance-broker.de/downloads/60279200907.pdfIn PDF document text
  • http://woori-tour.kr/FileData/ckfinder/files/20210607_E85181D8FDCB5E13.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609edbffcaab2---45034951230.pdfIn PDF document text
  • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/3f96d30a19a6a5c11c1cadb6d4500c42/12603461381.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa6dfe9b1d---17928500701.pdfIn PDF document text
  • http://adabaskimerkezi.com/upload/file/92897083999.pdfIn PDF document text
  • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/aqsec7r2uvg4iaj18v505hm289/gajumukuluzas.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd12323d7d---divevebutujenoxenixebafe.pdfIn PDF document text
  • https://arte-salon.ru/upload_picture/vimorelenadidonir.pdfIn PDF document text
  • https://anandamsanyal.com/userfiles/file/nogiwij.pdfIn PDF document text
  • http://merwepizza.com/upload/file/59365261390.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=health+effects+of+overworkingPDF 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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