Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://ponafet.ru/123?utm_term=free+employee+training+checklist+template PDF link annotation

  • https://wapojopaboxijok.weebly.com/uploads/1/3/4/7/134747084/segudazo-kikopatemisifef-tefovomivewat.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476567/normal_606245f523439.pdfIn PDF document text
  • https://lufufalab.weebly.com/uploads/1/3/4/6/134634403/115f4968c94d.pdfIn macro / runtime command snippet
  • https://fowowudajij.weebly.com/uploads/1/3/5/3/135312379/1a1340be.pdfIn macro / runtime command snippet
  • https://cdn-cms.f-static.net/uploads/4477379/normal_604f4e265e3d6.pdfIn PDF document text
  • https://tuzafezinaxav.weebly.com/uploads/1/3/4/3/134319976/kosaledu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420449/normal_600dcea552fd8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386837/normal_6019f10ade918.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391925/normal_6056cf8c8f6b9.pdfIn PDF document text
  • https://bazubipevudupu.weebly.com/uploads/1/3/4/8/134876407/8010334.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4478685/normal_602fcb4fbe999.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4489976/normal_600294d7c228d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427526/normal_6014bc191ae2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476567/normal_In macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/17621a81-f6fc-41c1-a7e8-7e3f8de5a18b/irene_ian_noe_chords.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e52552b-44ab-436f-b77c-e3b9b44eed38/3829455109.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4f5bdd34-a48c-4cb9-af52-1a69653e2f70/22438615166.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7b8cd17f-20ce-460d-ab28-49a2c58cb7d3/50_shades_of_gray_in_order.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39454879-2cd4-4598-b2ac-6f34ada64d1b/how_to_use_kali_linux_in_cmd.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fecbf33f-2ccf-4cd8-9488-681e19e6e520/58608891979.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c59d11a6-e5bb-454e-9e6d-0c2de0eb47cc/53957390.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ad9b23c-dc9b-44ba-8f2f-8387b1614fe6/bozefodufupupizaw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d38debd3-537d-46b3-a622-6c2d836cda1d/bella_coffee_maker_red_wont_brew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/311f9b9d-c0ea-4a66-98da-e637fb19dcdf/evh_5150_vs_marshall.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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