Malicious PDF — malware analysis report

Static analysis result for SHA-256 902f04e48bdfc568…

MALICIOUS

PDF

35.1 KB Created: 2021-11-24 03:56:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: f4a490f0518b1a9808e5d0c4053acaf4 SHA-1: a651669d0b5cbe78ca27874f9488ac97de2401ba SHA-256: 902f04e48bdfc568588fe5b178557057bf257e9e6dd41d0e994389dd305558bf
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to a link farm, indicating a likely attempt to redirect users to malicious sites. The PDF's structure and embedded content suggest it is designed to exploit users through deceptive links, aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7877

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://gtijsr.com/userfiles/file/kolojimazuxofurokawewa.pdf In document body
    • http://3wsystems.com/shipinc/userfiles/files/18239415135.pdfIn document body
    • http://tcsklife.com/filespath/files/20211026040926.pdfIn document body
    • http://gorisum.net/fckeditor/upload_file/file/sewuvaku.pdfIn document body
    • https://coil.hk/upload/files/64243411983.pdfIn document body
    • http://travelcenterpuntos.com/campannas/file/50762406511.pdfIn document body
    • http://xn--h1agcmh.com/ckfinder/userfiles/files/luxutifexomupurulidat.pdfIn document body
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1616b169d43d33---30403334010.pdfIn document body
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16165817193fb6---75184645197.pdfIn document body
    • http://velocimapper.com/webfiles/file/99651291894.pdfIn document body
    • http://otpetye.com/images/shared/file/lenupamujixepad.pdfIn document body
    • http://vijyaiprismcrm.com/userfiles/files/babuv.pdfIn document body
    • https://feedproxy.google.com/~r/Gsjc/~3/u-9XGpgKpwY/uplcv?utm_term=ionic+equation+of+sodium+thiosulphate+and+hydrochloric+acidPDF link annotation

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