Malicious PDF — malware analysis report

Static analysis result for SHA-256 33ebcbc51b179c17…

MALICIOUS

PDF

50.6 KB Created: 2021-02-17 19:32:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 35df7beeb9801201688ed2a6313f663e SHA-1: 7b9adf37163a0be0a199238142a844184555c77c SHA-256: 33ebcbc51b179c1787be47e86b32fce15fce8dcaf24b1619302483eedbe3c2c3
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The document body and extracted URLs suggest a link farm designed to redirect users to potentially malicious sites, indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic. The presence of embedded URLs and the overall structure point towards an attempt to trick users into downloading further malicious content or visiting phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7630

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://baarspo.ru/aws?utm_term=what+happens+when+a+transmission+range+sensor+goes+bad PDF link annotation
    • http://shop-onlain.fun/totally_accurate_battle_simulator_free_download_apk_pculuut.pdfIn PDF document text
    • http://akb54.ru/catapult_king_mod_allgdycq.pdfIn PDF document text
    • http://ujjjrrrrr.space/jemujabaxujupubadugofaxopz8y8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446636/normal_601e78934736a.pdfIn PDF document text
    • https://loxogekero.weebly.com/uploads/1/3/4/0/134040689/pafadusogomikovovoru.pdfIn PDF document text
    • http://christinaanddavid2019.com/1883547118281tbz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411683/normal_5ffe97692ea88.pdfIn PDF document text
    • http://cardioactiveuficiale.site/93760736019xwc03.pdfIn PDF document text
    • http://voirlo.xyz/fabigifogisobowofetajm9wbe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421335/normal_5fcf135f4In PDF document text
    • https://s3.amazonaws.com/tamobalasu/shikari_bangla_full_movie_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/sikurenutavalavod.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/zujifosifasugimakerop.pdfIn PDF document text

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