Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a259a9d9529925e…

MALICIOUS

PDF

70.8 KB Created: 2021-03-16 00:42:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bdc93c5fe3233507c700a009a3595aa7 SHA-1: 5bcc3bc3e32d4e1d1a46c6ca9f13b1f531907ae6 SHA-256: 6a259a9d9529925ed2bdace45799a57d1f21cb4d5859d8519dba236206e5d6f3
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable domains and are likely part of a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of multiple unknown reputation URLs strongly suggest a phishing or malicious redirection attempt. The ML classifier and ClamAV detection further confirm the malicious nature of the file, indicating it's likely a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 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://dafemum.ru/wb?keyword=kenmore%20dishwasher%20model%20665%20reset%20code PDF link annotation
    • http://copyright-rules-help.com/503624764010qe1l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404285/normal_603e0877426e4.pdfIn PDF document text
    • http://prodson.space/driftwood_shores_hotel_florence_oregontbeqh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462732/normal_5ffc23c345a12.pdfIn PDF document text
    • http://zaxegod.getenjoyment.net/gujolereneripad.pdfIn PDF document text
    • http://eurosett.net/los_tipos_de_sistemas_del_cuerpo_humanopfat6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387716/normal_603f24372df5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426966/normal_601c9551385aa.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/natupokasumajitaxa.pdfIn PDF document text
    • http://dontbeshy.xyz/free_among_us_skins_and_pets_mobileqgxkc.pdfIn PDF document text
    • http://vexetifiridik.mypressonline.com/tagizozituxopararu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409623/normal_6041c25cd1f7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393018/normal_6027b7e4aa212.pdfIn PDF document text
    • http://kinemulawaw.sportsontheweb.net/sword_art_online_alicization_lycoris_update_1.11.pdfIn PDF document text
    • http://kejumazinanu.mywebcommunity.org/86572573906.pdfIn PDF document text
    • http://jiwabozaxexe.mypressonline.com/17272677420.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410985/normal_601ed7db14ede.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/6ab5767a-0ed9-4004-9342-53829c3aa10c/40013018504.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1eca9d2-60ac-4619-a635-90e976e050f2/leer_biblia_hebrea_en_espaol_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/711f5f4e-d822-47ba-a957-b9e4807c5953/55933763378.pdfIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/nascla_contractors_guide_tennessee.pdfIn PDF document text
    • http://zevusup.atwebpages.com/zumob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc639b18-26de-4070-a149-4fd7cf584336/the_mortal_instruments_series_hardcover.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/166dc12d-e8f0-49af-8d0c-3616df47b576/tolarelatasa.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_off0000d444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD444 5516 bytes
SHA-256: 299deb6981738e4f27a6d24715fb43809045b2a4235beb3d6035422c443f03d0
font_01_sfnt_off0000e6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F8 10856 bytes
SHA-256: 15f8c021da8880dcf7c738822c0eb7bf6f4be76edd9f1316b66be74944e7d60e

Open this report in the interactive analyzer, or submit your own file for analysis.