Malicious PDF — malware analysis report

Heuristics 7

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://cctraff.ru/123?keyword=download+vlc+application+for+android In PDF document text

  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/xenemavurinap_jokepirewiteda_fijalezej_gemewije.pdfIn PDF document text
  • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/zofawebilakodogupe.pdfIn PDF document text
  • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/1969782.pdfIn PDF document text
  • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/0297a0dd3845.pdfIn PDF document text
  • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/xifid_dakakezinetuti_fixabunu_tujoramodewusos.pdfIn PDF document text
  • https://namunobuwuper.weebly.com/uploads/1/3/0/7/130776476/damibezivubuv_rewobadojin_viwetegomi.pdfIn PDF document text
  • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/54d21.pdfIn PDF document text
  • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/1603386.pdfIn PDF document text
  • https://xilorufanil.weebly.com/uploads/1/3/0/7/130739938/tipirikuduk_dusufitizibobil_xexekod.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366312/normal_5f890ee28a676.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371543/normal_5f8e1d740dd9f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370264/normal_5f901bf89d49c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378599/normal_5f8ba147d5692.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f8a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f8a.bin)
  • https://uploads.strikinglycdn.com/files/d9fca078-bfe0-4ada-a67d-514b7c1e15de/zosefi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/130f70c1-72b9-4f87-923b-bcfa491c436f/14860025939.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/649c7ac4-54ce-46ef-aef5-5a13e86cf012/71437746004.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8aca5d63-a76d-415b-9bc0-e5cda8ba681e/pudusixa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a035d258-ce32-4a4a-988d-768cd0def8e1/kakekasasomurotapowab.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5fa78c8f-bdb6-4e22-afb3-c8330b8a339b/31670932097.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e89ef124-9209-4705-9840-e3d9cb512b41/reridazumi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9900fa5b-c178-49f6-893f-a02d85b08531/eazy_e_boyz_n_the_hood_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b095a4c-c7a5-4519-8fb3-d795a2249b95/75016356937.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/65bff1c1-0674-4e6b-8029-ab63ee827ee5/wosezaduwapilovesowukof.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://dejavu.sourceforge.netIn extracted file (stream_005_off0000a805.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off0000a805.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00006f8a.bin)

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