Malicious PDF — malware analysis report

Static analysis result for SHA-256 de3e225242fb3bb5…

MALICIOUS

PDF

75.6 KB Created: 2021-01-13 04:19:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4ab298f8f20eb9918d863e3e0e345e22 SHA-1: 89daaebd4e6bd6c5b65c3d048c3d38b4120acf80 SHA-256: de3e225242fb3bb575040dee2aef392c4ff707427b22ae58b3519d8bf99180eb
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic indicating it is a phishing lure, specifically using an image to redirect users to a malicious URL. The embedded URL and the high ML classifier score further support this assessment. The document body, though heavily obfuscated, appears to contain metadata related to a datasheet, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9414

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://trafftec.ru/aws?utm_term=uns+n04400+datasheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f8ef7650baaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492575/normal_5fd78181a1121.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381988/normal_5fbe853fc5015.pdfIn PDF document text
    • https://cdn.sqhk.co/leperanurosi/hgixdhh/merge_plane_click_idle_tycoon.pdfIn PDF document text
    • https://cdn.sqhk.co/xevuvuxene/jLhbs15/cobb_theater_lakeland_open.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493578/normal_5fd79ab03354b.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/dje2VB3/32926396887.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/74035451267.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/video_di_fb_online.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/77706934459.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/zemuwowetikivudetubo.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/64507284734.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/accuracy_and_precision_worksheet_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/9437585864.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/47569059675.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/vupikajumenozabikamunuj.pdfIn PDF document text

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