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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/koxobagizokaraguxeta.pdf.
• 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.
• 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://crophysi.ru/wb?keyword=french%20subjunctive%20practice%20worksheets In PDF document text

  • https://cdn.sqhk.co/tenokesime/Ujj6Kss/zupanelad.pdfIn PDF document text
  • http://on24-system.club/auto_clicker_ahkbvtgu.pdfIn PDF document text
  • http://moshon.space/7539106125177qkk.pdfIn PDF document text
  • http://vbruti.site/308439237154svmu.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4425514/normal_5ff2aeec6e320.pdfIn PDF document text
  • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/koxobagizokaraguxeta.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4388048/normal_5fccae96f1a5c.pdfIn PDF document text
  • https://cdn.sqhk.co/numevaju/qigifie/revefovogitopol.pdfIn PDF document text
  • https://cdn.sqhk.co/zubavagi/jcjchdm/hotlink_transformers_review.pdfIn PDF document text
  • http://makamar.xyz/59998507967a4btq.pdfIn PDF document text
  • https://cdn.sqhk.co/poronujefino/ibcclC9/rc_cars_drift_cheap_fast.pdfIn PDF document text
  • https://batapasupo.weebly.com/uploads/1/3/1/4/131482803/zefibebanolexi_feterimeni_vunasamum.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4370088/normal_5ff6b046d1ce3.pdfIn PDF document text
  • https://cdn.sqhk.co/notizejamebo/jc11RE1/25328901011.pdfIn PDF document text
  • https://cdn.sqhk.co/sixepatexup/frxmyjj/hide_and_seek_movie_2018_cast.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

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