Malicious PDF — malware analysis report

Static analysis result for SHA-256 1423fcfb5ae80243…

MALICIOUS

PDF

46.2 KB Created: 2021-02-27 12:19:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 64428fa9d3321435d8ef7050d3dba9a0 SHA-1: 88b747a7b6f72bf42f4e71f9f573c34af233dbab SHA-256: 1423fcfb5ae802437984891f61dc289f16a71f9de7d7d329f6616cc900810fd7
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to search queries, indicating a lure to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7304

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://dugedepap.ru/award?keyword=how+to+change+the+battery+in+a+casio+wave+ceptor PDF link annotation
    • https://nafusulujaj.weebly.com/uploads/1/3/4/5/134596397/8277a555.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450039/normal_600a4ad648c74.pdfIn PDF document text
    • http://rugegav.mywebcommunity.org/star_trek_movies_cast_2016.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495059/normal_5ffa36812ea60.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/what_season_of_vampire_diaries_did_elena_and_damon_break_up_in_real_life.pdfIn PDF document text
    • https://cdn.sqhk.co/sovajepuxe/3jdhfih/nonasufiluzujigukupi.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/siwuxujububazaribaraketoz.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/sHjjjeP/posomulub.pdfIn PDF document text
    • https://regivuno.weebly.com/uploads/1/3/1/0/131070843/milaxabivawefo.pdfIn PDF document text
    • https://sewusadata.weebly.com/uploads/1/3/5/4/135401056/nujinibez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_6033716f4d3f9.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/haC0LRW/race_car_coloring_book_print.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470979/normal_5fc59c039b58a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404297/normal_6002d54363c33.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/37234004647.pdfIn PDF document text

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