Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://jumiwimov.ru/strik?utm_term=given+the+function+f%2528x%2529%253D0.3%25284%2529%255Ex+what+is+the+value+of+f%255E-1%25286%2529 PDF link annotation

  • https://pepajodik.weebly.com/uploads/1/3/1/4/131453945/muvop_fatubefibe.pdfIn PDF document text
  • https://vuloxeresipagig.weebly.com/uploads/1/3/1/0/131070754/3763727.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4446633/normal_5ff3a1083260f.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4467003/normal_5fce353e14832.pdfIn PDF document text
  • https://xomarexisu.weebly.com/uploads/1/3/4/7/134701616/2075358.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377380/normal_606279bd3fe4a.pdfIn PDF document text
  • http://gapagal.mywebcommunity.org/biodegradable_plastic_from_banana_peels.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_120d8aecbd594020b469272b53ef105e.pdf?index=trueIn PDF document text
  • http://tediguku.atwebpages.com/volifadusi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/428ebd4e-ee6a-49a6-8205-8c53c5b31851/theory_of_knowledge_immanuel_kant.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2d541c15-dea8-4d05-ad9f-bef0f7e257aa/how_to_write_a_play_script_key_stage_2.pdfIn PDF document text
  • https://eac5c218-d238-408c-98a6-8ff0ecbb25fc.filesusr.com/ugd/b1277d_713c7c2b13b94ffd9bc3dd724a77436f.pdf?index=trueIn PDF document text
  • https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_699f0fb53bbc4d3489dc7af9b7b37304.pdf?index=trueIn PDF document text
  • https://38f9ccf9-db33-4582-994d-0ea518e52d38.filesusr.com/ugd/368de4_2dce06641d1b4673a2df90447757d1c9.pdf?index=trueIn PDF document text
  • https://8d90b851-447f-4cfc-ac95-1e867b71b983.filesusr.com/ugd/b371d9_f8497195208240079e6bee799b2a885b.pdf?index=trueIn PDF document text
  • https://c84ffda1-e72a-45fa-8ce8-a771970cf326.filesusr.com/ugd/9fd656_2f7dd0858a894d53a10c8c0e50a828e5.pdf?index=trueIn PDF document text
  • https://6c036dbd-b327-4678-b778-de8a2ee7bb50.filesusr.com/ugd/ed64d2_ac631d2b566e441596e96eca700fe571.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/44362eb1-f29f-4a8b-8c2d-3121d500bc7d/grammar_blue_book_quiz.pdfIn PDF document text
  • https://d9226533-59f4-4737-ae77-cfa9cdee5378.filesusr.com/ugd/d7c203_38af2f666a3f4805804c87013368e3a6.pdf?index=trueIn 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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