Malicious PDF — malware analysis report

Static analysis result for SHA-256 5277c301f4a15f1e…

MALICIOUS

PDF

36.7 KB Created: 2021-02-24 21:35:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fbba35fd7bf73e1d20ab118951bac849 SHA-1: 5ea44a999d8bb86fc0dbd7582a9c565d152aecbe SHA-256: 5277c301f4a15f1e806bc00b551faefda7ee4493d7df426a45e830f08045fa35
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only document with an action trigger, typical of a phishing lure. It contains an embedded URL that directs to a suspicious domain. ClamAV also flagged this file as a phishing trojan, further supporting its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5266

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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 36 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://jottigo.ru/award?keyword=amigurumi+for+beginners+free+patterns PDF link annotation
    • http://bobr.space/mineral_oil_pc_kitza86l.pdfIn PDF document text
    • https://nobiramiw.weebly.com/uploads/1/3/4/4/134403563/3752257.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/12408881912.pdfIn PDF document text

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