Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://krisoc.ru/pbw?utm_term=eren+and+mikasa+and+armin+talk PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4454180/normal_606151311581c.pdfIn PDF document text
  • https://risuwawew.weebly.com/uploads/1/3/4/4/134403416/6c382b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4443598/normal_606c717d8173d.pdfIn PDF document text
  • https://jigaxokere.weebly.com/uploads/1/3/4/6/134622899/3315638.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391315/normal_600f5fd92436a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4427811/normal_5fc7e7c7ab271.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4468571/normal_60b53dd6b54c0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420432/normal_6041fd06348aa.pdfIn PDF document text
  • https://xijaxerunoseme.weebly.com/uploads/1/3/4/3/134306079/4c91bd2110c1b7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413011/normal_5fd0d61a10ee4.pdfIn PDF document text
  • https://zogazakuf.weebly.com/uploads/1/3/1/6/131636678/jugusaf.pdfIn PDF document text
  • https://bibunifa.weebly.com/uploads/1/3/4/0/134040356/muvesuvaxujoxasofomi.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4494138/normal_60b769512cf44.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/eec4fe0b-28c6-4a4c-a64f-7c2bed550a74/99392304808.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e17be62e-1ee3-4e3c-aeef-4add0f8a4bec/lexile_ranges_by_grade_level_2020.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ce4ed52c-fdfb-46f6-989e-01c1963b6243/wexapixusularerexajogapib.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d411dfbb-9b9f-4f33-9a06-e4a235f73c0d/is_sandisk_ssd_compatible_with_macbook_pro.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6cf7f95-d979-4cf3-bd23-5946919b2dc9/62720357573.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0aa6779f-1797-4497-a6e7-ab5760ca6366/kumon_math_sheets_grade_1.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7760bd62-50f2-4152-9f5c-24f3ed29788a/stihl_ms_250_parts_list_diagram.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2370f7e-2301-4710-a08f-a51def5565f4/beats_studio_2_wireless_vs_solo_3.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d60fa8ab-bfc7-4803-9929-aa0ff94af34c/attack_on_titan_manga_season_4_coloured.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/22d0f0e6-78de-4ca8-98d1-668a498cb8c2/tovedugam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2aa8094c-2590-4bf1-9e59-b9800c658f7e/69588276731.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c952f57a-a121-45b2-a9ae-6b83f04f8ad2/14092461049.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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