Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ef230732bcd42c…

MALICIOUS

PDF

126.5 KB Created: 2021-01-20 04:52:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fade1534ef7ee695b5fd4f537b8247c7 SHA-1: 1f14f67416b54294c8feb35170f9031504447956 SHA-256: 24ef230732bcd42c442e8f3f97f0184f2408543c65366c496a9e9fba545106e1
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was identified as malicious by multiple heuristics, including a high ML score and ClamAV detection. It contains numerous embedded URLs, many pointing to disposable hosting services, and is flagged as a link farm. The presence of external URIs and the nature of the embedded links suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

Heuristics 4

  • 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
  • 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://trafficel.ru/123?utm_term=delaware+unclaimed+property+statute PDF link annotation
    • https://site-1254607.mozfiles.com/files/1254607/fms_web_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/tadanopi/h5hgPii/shelter_free_movie.pdfIn PDF document text
    • https://site-1168173.mozfiles.com/files/1168173/lumivo.pdfIn PDF document text
    • https://site-1176998.mozfiles.com/files/1176998/karagorosuvalanejifidosen.pdfIn PDF document text
    • https://cdn.sqhk.co/bodavadu/OjaquqQ/1371353840.pdfIn PDF document text
    • https://site-1176370.mozfiles.com/files/1176370/zoguj.pdfIn PDF document text
    • https://site-1168101.mozfiles.com/files/1168101/68225664359.pdfIn PDF document text
    • https://site-1168537.mozfiles.com/files/1168537/halloween_paint_by_number_art_color_book_apk.pdfIn PDF document text
    • https://site-1180945.mozfiles.com/files/1180945/sago_mini_friends_pc.pdfIn PDF document text
    • https://site-1177778.mozfiles.com/files/1177778/71402567743.pdfIn PDF document text
    • https://fanuxerejupu.weebly.com/uploads/1/3/1/3/131398214/vibebebafijopoduk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412584/normal_5fa7ac5aef7e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473637/normal_5fe95827a07bb.pdfIn PDF document text
    • https://site-1167953.mozfiles.com/files/1167953/radio_italia_live_concerto_duomo.pdfIn PDF document text
    • https://site-1168030.mozfiles.com/files/1168030/home_remedies_for_leg_pain_due_to_diabetes.pdfIn PDF document text
    • https://site-1172409.mozfiles.com/files/1172409/gedasulu.pdfIn PDF document text
    • https://site-1234661.mozfiles.com/files/1234661/puvelufufo.pdfIn PDF document text

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