Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c5c2c57414c8c5…

MALICIOUS

PDF

34.7 KB Created: 2015-12-17 22:57:04 UTC Authoring application: Nitro Pro
MD5: c4156099784a8d18cd6d8ddc6e4359b1 SHA-1: 7af1680684a333445806f4f9356af85c627fe077 SHA-256: b2c5c2c57414c8c58f9b1a48df86bb12f260c2367c753407cf1fed3852c75b5f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF is identified as an image-only lure, a common technique for phishing or malware delivery. It contains a single external URI pointing to a suspicious domain, which is likely the destination for the malicious payload. ClamAV detection further confirms its malicious nature as a dropper.

Machine Learning

  • Nyx PDF Classifier clean score 0.0153

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7294499-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7294499-0
  • 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 34 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://radiorockcristaocuritiba.nivel.top/uploads/adobe
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/

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