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://zajinet.ru/award?keyword=diferencia+entre+absorcion+y+adsorcion+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4414336/normal_600f14a6c5ff2.pdfIn PDF document text
  • https://xilowodasu.weebly.com/uploads/1/3/4/7/134742848/3528650.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401691/normal_6012583412b8e.pdfIn PDF document text
  • https://bokupotanija.weebly.com/uploads/1/3/5/9/135995636/ridiwugeguf.pdfIn PDF document text
  • https://bemafaparad.weebly.com/uploads/1/3/2/6/132681832/6d54d0be9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372740/normal_601d6daa52568.pdfIn PDF document text
  • https://babaketejo.weebly.com/uploads/1/3/5/3/135304919/folelanaxezediv.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4480149/normal_603089ff953e4.pdfIn PDF document text
  • https://dipapira.weebly.com/uploads/1/3/4/6/134610741/1308021.pdfIn PDF document text
  • https://bafumujem.weebly.com/uploads/1/3/4/4/134498711/9280171.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411696/normal_603e2aae05202.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/971233b4-781c-4bc1-bc0c-4070ecaedb06/zojevexev.pdfIn PDF document text
  • https://8d59741e-369e-44be-b01e-8fbcb09d2d01.filesusr.com/ugd/7cefa9_ebc89de8692e45b2ab57e66dc3e06c64.pdf?index=trueIn PDF document text
  • https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_ef3f2936f7a542afbe942a8f1669bbb6.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/54711fa9-fe44-47b7-bcbb-eb69f3350a43/22792994734.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/363caa00-a840-49b7-bb56-b9e64daa06ac/32724199781.pdfIn PDF document text
  • https://0fe83ef2-ed6b-4f04-a52d-31fe3c58d8d1.filesusr.com/ugd/ade4e6_e94cb00991ef48c3aea8b4648f034e75.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/749dae1d-f7c6-4d45-ac1c-d197f441f858/the_tragedy_of_macbeth_act_1_reading_check_answer_key.pdfIn PDF document text
  • https://3d9856c9-ddaf-40ef-ab37-14107f3d3ee7.filesusr.com/ugd/938106_4b20283158394534812609c1675782d2.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/570e670a-49b2-41e0-8898-45d7cfc979ac/metal_gear_solid_2_substance_pc_gaming_wiki.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/434abee0-5923-4cd1-9d89-c5b7a75d58b0/harvard_resume_and_cover_letter.pdfIn PDF document text
  • https://2a4c341d-9af7-4f89-b48a-1b926ad6ced7.filesusr.com/ugd/dd6616_04e284b9d6f34cdb91507e470f650ecc.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb8aa681-279a-49a2-b87c-74500224aa16/solving_systems_of_quadratic_inequalities_by_graphing_worksheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2955470c-dbb1-46e4-b9df-555ef9cc2bd5/how_accurate_is_the_book_of_enoch.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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