Malicious PDF — malware analysis report

Static analysis result for SHA-256 207e008383fd241a…

MALICIOUS

PDF

42.9 KB
MD5: eb1e7c5b19ce721b5b15f2791ec43d2c SHA-1: 7e85660d1948fe4b9022691f728d9a0d94026d9c SHA-256: 207e008383fd241ad598cdc0af23e9d7f6b4f8a36724992fa2c2aa67012d542d
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF was flagged as malicious by multiple heuristics, including a critical ClamAV detection (Pdf.Exploit.Agent-36830) and an ML classifier with a high confidence score. An embedded file and script payload were detected, indicating the PDF is designed to exploit vulnerabilities and deliver a secondary payload. The specific exploit or payload is not detailed in the provided evidence, but the presence of an embedded artifact is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
5587e17b2b894a653fd86e27dc8c507e822e27f63729c1610e7a43b2c5cf5653		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 43196 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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