Malicious PDF — malware analysis report

Static analysis result for SHA-256 a58be6c706ed2759…

MALICIOUS

PDF

52.6 KB Created: 2021-01-10 03:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cfb90c7572b045323ec52c11168c5296 SHA-1: 4a2a91499c99bb73ff7e56b6304b602f26e75b6b SHA-256: a58be6c706ed275906970d49fc34fed6af94bd0119626d62276650034904950c
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which are hosted on disposable domains, indicating a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the presence of external URIs and the overall structure point towards an attempt to lead the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7021

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
  • 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://traffset.ru/aws?utm_term=frozen+movie+2010+parents+guide PDF link annotation
    • https://cdn.sqhk.co/baluwofuk/ogfghgj/vefevobenilepiforixoj.pdfIn PDF document text
    • https://site-1200376.mozfiles.com/files/1200376/factory_inc_hack_appvn.pdfIn PDF document text
    • https://site-1171851.mozfiles.com/files/1171851/62281523893.pdfIn PDF document text
    • https://site-1167986.mozfiles.com/files/1167986/dictionary_tagalog_spanish_translation.pdfIn PDF document text
    • https://nepuvojikonutoz.weebly.com/uploads/1/3/4/6/134677469/ketizugefulo_bonuve.pdfIn PDF document text
    • https://site-1174105.mozfiles.com/files/1174105/47999094607.pdfIn PDF document text
    • https://site-1172655.mozfiles.com/files/1172655/best_free_piano_lessons_for_beginners.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490141/normal_5fd77c28f1717.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497093/normal_5fbee42c2024f.pdfIn PDF document text
    • https://site-1178548.mozfiles.com/files/1178548/beremotalatejafavo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5f96878c70add.pdfIn PDF document text
    • https://tewamuwomipatus.weebly.com/uploads/1/3/0/9/130969874/67a2563e364da4.pdfIn PDF document text
    • https://site-1168077.mozfiles.com/files/1168077/vokolonawovarajeforufezud.pdfIn PDF document text
    • https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/3103070.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481061/normal_5fe9effe49ef2.pdfIn PDF document text

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