Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b974ab950fe34d…

MALICIOUS

PDF

120.3 KB Created: 2021-04-06 14:05:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 08f6c78721286acf67413a4736bcde33 SHA-1: e6ed2d2a8535019d315f332bc99c03e9f2585ffa SHA-256: 00b974ab950fe34d1aa8e11cf6b0979eacca27246f91c0b7315a5b7a2563161b
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery via these links. Although no scripts were directly extracted, the PDF structure and numerous external URIs point towards a malicious document designed to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://lozipotod.ru/aws?utm_term=physics+for+scientists+and+engineers+6th+edition+volume+1 PDF link annotation
    • https://cdn.sqhk.co/mejapevelu/hiajbic/basel_ii._5.pdfIn PDF document text
    • http://retys.space/kamirifexexofu6oui7.pdfIn PDF document text
    • http://kavakedego.scienceontheweb.net/mugimapupis.pdfIn PDF document text
    • http://bigezidara.mypressonline.com/tapad.pdfIn PDF document text
    • http://xolokeminapi.getenjoyment.net/xigipuba.pdfIn PDF document text
    • http://uplrezina.site/pudadobevajuvaburezaolcl.pdfIn PDF document text
    • http://vobalemujumojak.mywebcommunity.org/how_to_connect_rock_band_4_guitar_to_xbox_one.pdfIn PDF document text
    • http://bilet-pdd.site/framework_analysis_in_qualitative_researchf82ex.pdfIn PDF document text
    • https://cdn.sqhk.co/sesumaku/pidl2jh/73548741439.pdfIn PDF document text
    • http://pozezan.mygamesonline.org/cardiopatia_mixta_isquemica_e_hipertensiva.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/eqBgeid/tv_cartoon_characters_female.pdfIn PDF document text
    • http://dipenoguzel.sportsontheweb.net/99082123496.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/88c8e684-cead-41d4-a23f-e3106c37e17d/fluval_fx6_turtle_setup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76507152-8d94-4bd3-b802-d6fc1acaeb58/13633236845.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/24640234578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dea39dbf-cf38-4071-9933-77689e1980b9/organic_chemistry_lab_reports.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08332975-aa85-4758-9133-3a740bc57f57/77846179220.pdfIn PDF document text
    • https://460eb545-5389-4aa9-9e78-d1074a8bca0c.filesusr.com/ugd/21a131_90ae0f5a352f4d219e8afd73eec28d01.pdf?index=trueIn PDF document text
    • https://ae40ec61-d20a-40a8-9c94-208d4569f534.filesusr.com/ugd/5d0862_23e5852e49b9456d994a1955276a2ad7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cacd072-1d08-404c-b4e3-12fc43cca4f3/el_llano_en_llamas_resumen_yahoo.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00019a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A1E 5804 bytes
SHA-256: b2cebfcbc5f24549ff48591641309a1590c47ea7a4e363602a93a57569d369ce
font_01_sfnt_off0001add3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ADD3 10812 bytes
SHA-256: 5bfa960f62464b4b2d9a6a62d0ea0f72a0b5faab813d7f49bf8c04f72cb1c29a