Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a59eaf3b4bf13af…

MALICIOUS

PDF

61.3 KB Created: 2021-02-25 07:24:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b508374719e561566aa934262a7d6d79 SHA-1: 2b501949d8840a93b93628b244c07b9812c1220a SHA-256: 9a59eaf3b4bf13afba5c43f4da0871ace0c9d1614dbbe187778254e3e738b82c
182 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with at least one identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to direct users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8754

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 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.
  • 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://crophysi.ru/award?keyword=different+curriculum+model+pdf In PDF document text
    • http://help-nanny.site/used_taylor_gs_mini_guitar_for_saleuibgu.pdfIn PDF document text
    • http://demumamudu.22web.org/rcog_guidelines_early_pregnancy_ultrasound.pdfIn PDF document text
    • http://megahit.space/wrath_of_the_righteous_beta_accessd2r23.pdfIn PDF document text
    • http://matras-24.ru/q_alimentos_puede_comer_un_diabeticogir7l.pdfIn PDF document text
    • http://braco.ru/sandwich_maker_3_in_1_lidl4ghtw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415742/normal_601a3cb61377a.pdfIn PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/5039c03501f1.pdfIn PDF document text
    • http://tiruxukanemaga.iblogger.org/50273426766.pdfIn PDF document text
    • http://livofos.epizy.com/kogibexorazewok.pdfIn PDF document text
    • http://vabepevid.epizy.com/wedding_dress_day_guest.pdfIn PDF document text
    • http://loluwoje.epizy.com/math_grade_9_answer_key.pdfIn PDF document text
    • http://naturesivox.epizy.com/gozixalumanawikal.pdfIn PDF document text
    • http://keberugut.epizy.com/65528248834.pdfIn PDF document text
    • http://durevitulo.rf.gd/close_up_abbas_kiarostami.pdfIn PDF document text

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