Malicious PDF — malware analysis report

Static analysis result for SHA-256 94cf14f2a2d47b0a…

MALICIOUS

PDF

42.4 KB
MD5: ff4dd5327b1a5f2d04f036547567a75d SHA-1: 6e9119ad672a4e34369e2956a1c9977318a72092 SHA-256: 94cf14f2a2d47b0aad0b6d5ef33547b08a63d589004ef6b6c7cfe112c36e097c
156 Risk Score

Malware Insights

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

The PDF file contains embedded scripts and is flagged by ClamAV as Pdf.Exploit.Agent-36830, indicating it is designed to exploit vulnerabilities. The embedded script payload and XFA form suggest an attempt to execute malicious code upon opening. The embedded file artifact further supports the delivery of a secondary payload.

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
0e424eea9c03e5899b17ad8e48caab70c9114f12ec89c1b235beee3c4711a079		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42699 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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