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.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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/award?keyword=t1013+form+pdf In PDF document text

  • https://cdn.sqhk.co/lidupusumoj/YggH7EP/2919424147.pdfIn PDF document text
  • http://afracheat6.xyz/buzuguvei59o8.pdfIn PDF document text
  • https://cdn.sqhk.co/wesuwajil/idDoc0B/sun_tzu_art_of_war_history.pdfIn PDF document text
  • http://hookup673.site/715055695476tkj0.pdfIn PDF document text
  • https://cdn.sqhk.co/wemonamo/hj7Ebhc/28955773145.pdfIn PDF document text
  • https://cdn.sqhk.co/luwiwaduna/yXhiiTh/free_music_download_sites_for_mp3_players_legally.pdfIn PDF document text
  • https://cdn.sqhk.co/gidenateg/ggGvvde/30533873938.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/86b51164-8456-489e-8b5f-40fc1b2ecbbd/materials_science_and_engineering_9th_edition_solutions_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2ad31f3-0645-4bbf-946d-a7c3c40e4b71/defagirifexe.pdfIn PDF document text
  • http://mowesod.epizy.com/misplaced_modifiers_examples_with_answers.pdfIn PDF document text
  • https://599b09cd-7b6a-4758-94a3-08a08d316165.filesusr.com/ugd/628a76_5b24c4c064764c0e94faedb9d756dc09.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5fb159a-042f-42fc-8d6c-25390b3f73d5/99372907634.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0545bd2-b737-477f-b8f5-a8d043bcd4c6/best_resistance_bands_exercises_for_abs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6e940bb-750d-4df5-9932-53cbf909040e/cement_truck_driver_salary_nyc.pdfIn PDF document text
  • https://df1882fa-13c5-42f1-8438-577935b594b9.filesusr.com/ugd/91932b_3dcb3e208a714a4caa3a2e3a865fa6fb.pdf?index=trueIn PDF document text
  • http://vudatuvabejosix.epizy.com/duraflame_heater_replacement_fan.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eeae80d2-2dff-4495-a73c-abc2fd47989b/yaesu_ft-450at_mars_mod.pdfIn PDF document text
  • http://dujupopo.epizy.com/pdf_to_word_converter_online_nitro.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/70dba2e6-9b32-4619-9385-5bf350428fa0/7041189980.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f7145c68-845f-4513-baab-fd0bd747af74/nosivifesanezepizokew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e346d586-3919-4211-9b2d-786955bbcfc2/49917362140.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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