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://fokemale.ru/strik?utm_term=bayesian+analysis+with+python+pdf+download PDF link annotation

  • http://bimonetejatoleb.mygamesonline.org/math_expressions_grade_5_volume_1_answer_key.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4455914/normal_60331b9103f05.pdfIn PDF document text
  • http://suxoxaxowigab.scienceontheweb.net/suxoderazabokujelivuruf.pdfIn PDF document text
  • https://fadirepux.weebly.com/uploads/1/3/1/4/131438814/00830638341.pdfIn PDF document text
  • http://palupalukagu.mygamesonline.org/kinipewi.pdfIn PDF document text
  • https://tiselewo.weebly.com/uploads/1/3/1/6/131606631/nadisonew.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485939/normal_6047208e86b24.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4403936/normal_5fcdf3038ddf8.pdfIn PDF document text
  • https://rerofijujujedo.weebly.com/uploads/1/3/1/8/131872137/66452.pdfIn macro / runtime command snippet
  • http://kakafeg.scienceontheweb.net/4.1_factors_that_affect_climate_answers.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploaIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/loxopudizus/fruits_and_vegetables_worksheets.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6fd979ec-16a4-41c9-8b44-9b2c15ebe0b6/96423511502.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/56b82118-148c-4ffa-98f3-8755999de8a6/why_walmart_failed_in_south_korea.pdfIn PDF document text
  • https://s3.amazonaws.com/sisaxu/codex_bezae_cantabrigiensis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01ff432c-8937-4911-8434-94073fc5c81a/bosowajaxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb7d96f8-ef0e-49d3-ad64-19d5e7e4b377/43190689683.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a95200cf-1c31-4fc7-8d03-dc49e8b0fb4b/how_to_change_rip_curl_watch_band.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2b84644-ae15-4f8d-ada0-ae851502a849/bewukewenamorabodizati.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/89417a61-f232-479a-951b-dcc1ecf0247f/gupumatig.pdfIn PDF document text
  • https://s3.amazonaws.com/perurulexi/tizolo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef954ef3-d958-481b-9c19-2255023c9287/hp_pavilion_dv6_battery_driver_download.pdfIn PDF document text
  • https://s3.amazonaws.com/moduxanakuri/keeps_saying_my_hp_printer_is_offline.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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