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
• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://kuzutuzo.ru/award?keyword=pathophysiology+of+atherosclerosis+plaque+progression+pdf PDF link annotation

  • https://valexipeval.weebly.com/uploads/1/3/0/7/130775413/zomajebuj.pdfIn PDF document text
  • https://cdn.sqhk.co/dodagirojep/UHAqjb5/papevuzujo.pdfIn PDF document text
  • https://mewuvonemifutu.weebly.com/uploads/1/3/5/3/135394867/wosadoxawojifilal.pdfIn PDF document text
  • https://cdn.sqhk.co/puxolika/ifqaDXE/bowling_springfield_ma.pdfIn PDF document text
  • https://dumimejotuwanas.weebly.com/uploads/1/3/5/9/135957909/649c5b31e15.pdfIn PDF document text
  • https://cdn.sqhk.co/fexiseme/hKhbhaw/crazy_for_speed_unlimited_coins_download.pdfIn PDF document text
  • https://xagajopudulu.weebly.com/uploads/1/3/4/6/134697977/51985.pdfIn PDF document text
  • https://cdn.sqhk.co/nezusoxe/ghXgeOH/free_online_computer_courses_for_middle_school_students.pdfIn PDF document text
  • https://jenejipita.weebly.com/uploads/1/3/4/4/134473981/2cde9f8.pdfIn PDF document text
  • http://javebamugizal.66ghz.com/vewibawozade.pdfIn macro / runtime command snippet
  • https://xizazufes.weebly.com/uploads/1/3/4/6/134600205/todatodif-repiwaxuwez-kipasaralijawi-mitalolaneb.pdfIn PDF document text
  • https://cdn.sqhk.co/niserutom/hba29gh/6712241864.pdfIn PDF document text
  • https://rogebupapopax.weebly.com/uploads/1/3/0/7/130739826/milibodanasobip.pdfIn PDF document text
  • https://cdn.sqhk.co/jivomawufem/hgLifbl/33582182657.pdfIn PDF document text
  • https://tokemenar.weebly.com/uploads/1/3/4/3/134337898/fanudijadago_nitefepero_zilitose_losojofuvidoxes.pdfIn PDF document text
  • https://cdn.sqhk.co/texonatuzi/CT1ijKP/mavugokujafenexexuvimew.pdfIn PDF document text
  • https://jenejipita.weebly.com/uploads/1/3/4/4/134473In macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fujexadegog.rf.gd/asus_p8z68-v_pro_gen3_bios_settings.pdfIn PDF document text
  • http://sedegavokoxuk.epizy.com/warhammer_40k_eldar_codex_8th_edition.pdfIn PDF document text
  • http://zorogeloma.epizy.com/90383964321.pdfIn PDF document text
  • http://punumakiwibase.rf.gd/how_to_repair_registry_using_cmd.pdfIn PDF document text
  • http://pagikojezokatu.rf.gd/21471653036.pdfIn macro / runtime command snippet
  • http://pidosowot.epizy.com/arqueologia_prohibida_libro.pdfIn PDF document text
  • http://zovuzop.epizy.com/bootstrap_form_input_style.pdfIn PDF document text
  • http://bovubodomumid.epizy.com/sozotusuzokufuged.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://scripts.sil.org/OFLIn PDF document text

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