Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://nipisod.ru/123?utm_term=filter+column+google+sheets PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4426062/normal_6034da0b84662.pdfIn PDF document text
  • https://cdn.sqhk.co/gipudeviwapi/jggiQgc/82164472486.pdfIn PDF document text
  • https://cdn.sqhk.co/rufonova/jihbnhg/chunks_malayalam_full_movie_in_tamilrockers.pdfIn PDF document text
  • https://cdn.sqhk.co/modesinilofe/jd9Siff/shiny_breeding_guide_sword_and_shield.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476416/normal_605b1cfe685bd.pdfIn PDF document text
  • https://cdn.sqhk.co/tilafukefuwe/rgh5ic7/wilejanopupajibor.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4463005/normal_5fcce6fbba9bb.pdfIn PDF document text
  • https://e1ca4115-fb55-43f9-84f1-eaf814f8c83fIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_caa5904c17ef42419bd8434341837ea7.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/23975111-e849-461b-92f8-7d388551cf46/malegujoju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/936d8253-5e50-449f-b13c-659a22df4397/leguxat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cbbc5dfd-56f1-47da-a2ab-c46ac0deeab9/how_many_calories_are_in_arbys_curly_fries.pdfIn PDF document text
  • https://e1ca4115-fb55-43f9-84f1-eaf814f8c83f.filesusr.com/ugd/18122d_b47be73937a647cea49edffa66fd6a78.pdf?index=trueIn PDF document text
  • https://11ab4cf5-156d-4417-99e9-5039b2a7eb5f.filesusr.com/ugd/82d61e_98876d2750dd419da4585ed35f5e6f6f.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/99d22678-49ce-4057-bd37-82166add64fb/52605004534.pdfIn PDF document text
  • https://ec451167-49e0-489e-a150-d7dc0ecf9264.filesusr.com/ugd/fe0276_cf14e13094db497b9321732ec159e3e8.pdf?index=trueIn PDF document text
  • https://a49aa754-465e-4bbd-924e-b3d0e7b66bd4.filesusr.com/ugd/81d6a4_b88a44eadccb4b93ada6d598bdd5af5c.pdf?index=trueIn PDF document text
  • https://438e95ed-c264-4db5-88d3-1a9ca8b91b86.filesusr.com/ugd/733c1f_3175854ae2ef40ce9306b85183763332.pdf?index=trueIn PDF document text
  • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_c3926c0a4cd74c04bc64eae6a535132c.pdf?index=trueIn PDF document text
  • https://6a9ecc2b-05c3-4056-8705-773ae6be8cdd.filesusr.com/ugd/7a359d_2c9a21c656744fc7bdfe10a318b76263.pdf?index=trueIn PDF document text
  • https://8641c524-1fb5-4292-87ed-dd72f64d6c22.filesusr.com/ugd/9b7d8a_423e644c84634a7f8c42472b15d5843a.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/77714cfe-4420-4ecb-9be3-ae94f3e24a13/star_trek_discovery_season_4_episode_12.pdfIn PDF document text
  • https://0ea1ff7f-05b3-43a2-9744-178351a05ed1.filesusr.com/ugd/01f9b9_c3557eece0474d028b828c42bc731124.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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