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://dugedepap.ru/award?keyword=nattakurinji+varnam+pdf PDF link annotation

  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/sigobija/fowel.pdfIn PDF document text
  • https://71f68c9c-1037-483c-a0ca-f268b7ddd3c8.filesusr.com/ugd/87fdc7_0ad269a339384a3ca3cb361a696e7519.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/916720fd-c77d-469f-b6a2-ca82a822c423/11846926164.pdfIn PDF document text
  • https://s3.amazonaws.com/nemafu/birkat_hamazon_sefarad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3847121-97ee-41aa-a1ed-a2f5b6235c13/is_conair_a_good_brand_for_curling_irons.pdfIn PDF document text
  • https://s3.amazonaws.com/xupizewuxere/how_to_summarize_nonfiction_3rd_grade.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f79df0a7-0fbb-4e51-9bbb-449b34a6fbbf/mowositelavexojimale.pdfIn macro / runtime command snippet
  • https://uploads.strikinglycdn.com/files/dd6346bb-9484-48c6-8191-b8248c188ae7/constitucion_de_venezuela_1830_division_territorial.pdfIn PDF document text
  • https://s3.amazonaws.com/kosamupim/candy_crush_friends_saga_apk_mirror.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cda09334-f353-4969-9292-c4cbb9dff007/xazisa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8e41b6e4-1c5b-43bd-b65b-cc1ce9ace1fd/87519770735.pdfIn PDF document text
  • https://737bf953-b780-43bc-8af0-312ed5328a40.filesusr.com/ugd/017c44_b1c17446e18a47e994a4b9a7950e2fa0.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/085b0635-95d3-45b2-9d58-78f1587ed1b3/what_is_the_chemical_formula_of_dna.pdfIn PDF document text
  • https://5b949be5-44ef-49af-96c7-0ebaa8fe632e.filesusr.com/ugd/3402b1_4cc62d0dc0cf4278bf6153895c18cf5e.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9d8fdaf-cc31-41bf-a173-4f828d2e4d51/31409054296.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c3720553-6ee8-4ae9-8734-ed4c6b38e040/85748843900.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8112fd4-fc86-4f07-acfc-a57cd9b501cb/jesus_es_mi_fiel_amigo_letra.pdfIn PDF document text
  • http://rekadifaleroj.rf.gd/biochemistry_laboratory_modern_theory_and_techniques_2nd_edition.pdfIn PDF document text
  • https://52ed6390-a5c1-4502-9f93-599cf6d98ad1.filesusr.com/ugd/f7fbc8_7ed4dd8431dd41ef86bd854782252c2e.pdf?index=trueIn PDF document text
  • https://cd70d4e5-4a1a-4071-96d1-f2415ea5ece1.filesusr.com/ugd/7f46b5_129aefd7c87b49f2b6dae575bb20ac6a.pdf?index=trueIn PDF document text
  • http://fapibudu.epizy.com/apprendre__programmer_avec_python_3_eyrolles.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8387b964-68bb-4e70-a5b7-d6700b0664d6/fetatimopawebixoribawux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f02a929c-ddb7-4fcc-ab53-99b8638aebfc/sijukenanisusesuvisoz.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
  • https://s3.amazonaws.com/xupizewuxere/how_In macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text

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