Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f1dfa0ffe572bb…

MALICIOUS

PDF

49.6 KB Created: 2021-02-09 13:06:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b5f2d9f5206fd1d8bf431f1d0acf89d0 SHA-1: e5a5cd75dd9bdd3de74ac929ab076e3525b9ce2e SHA-256: d9f1dfa0ffe572bb6e1f3f6d805da2a6e19ce645cb829e1b834ac1e6c6b8caec
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and numerous external links point towards an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7011

Heuristics 5

  • 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.
  • 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
  • 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://bologen.ru/aws?utm_term=steelers+injury+report+week+5 PDF link annotation
    • https://xorewodanuvidiw.weebly.com/uploads/1/3/1/3/131381095/768eaa1.pdfIn PDF document text
    • http://timecodes.net/91469883911eyzo6.pdfIn PDF document text
    • https://kefufavara.weebly.com/uploads/1/3/1/4/131407952/73b02bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381551/normal_5fd30be5b97e3.pdfIn PDF document text
    • http://ductsunlimitedins.com/6906451758oippa.pdfIn PDF document text
    • https://wefojomoki.weebly.com/uploads/1/3/5/3/135389947/sasep_vosom.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/vuxafokumenawonaliduzzfux8.pdfIn PDF document text
    • https://budojidotepaso.weebly.com/uploads/1/3/5/3/135312143/pafiduxigo-xipekajepagawo-xolufofijis.pdfIn PDF document text
    • https://zedetebi.weebly.com/uploads/1/3/1/0/131070456/60ba432bff7daae.pdfIn PDF document text
    • http://lnstagramverifiedsbadgesforms.com/14011767955tko8z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369491/normal_5fda52c569f5f.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/iggie_s_house_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/9614082804.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/dreamfit_bamboo_sheets_cal_king.pdfIn PDF document text

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