Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd8109864710019d…

MALICIOUS

PDF

506.6 KB
MD5: 2642ec2eebd298118488e898f5ac9cbe SHA-1: 737ae983f9dec37291148a59ea8752c6984056da SHA-256: dd8109864710019d2aa9f12f494f51ecd5628a6c8e9297264e769185893e8a48
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The file is a PDF document that contains an embedded URI pointing to a suspicious external domain. The PDF_IMAGE_ONLY_LURE heuristic indicates that the document is designed to visually trick the user, as it contains images but no readable text. The ClamAV detection as 'Pdf.Dropper.Agent-7143919-0' strongly suggests its malicious nature as a dropper. The embedded URI is the primary indicator of the next stage of the attack, likely leading to a malicious payload download.

Machine Learning

  • Nyx PDF Classifier clean score 0.0003

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7143919-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7143919-0
  • Unusually high stream count medium PDF_MANY_STREAMS
    PDF contains 501+ stream objects — may indicate heap spray or heavy obfuscation
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE
    PDF has 2 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
  • 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 http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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