Malicious PDF — malware analysis report

Static analysis result for SHA-256 15f0b0fb008bf1ee…

MALICIOUS

PDF

42.4 KB
MD5: a09ca8903a39421274d6ebc30df44766 SHA-1: 972bc0248b61a4f923c7b2b279b61bfbbabdde1a SHA-256: 15f0b0fb008bf1ee18036bdce70d80b31e4e82b9f340935d6bb6ee655e2a8450
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-36830, and ML classifiers also flagged it with high confidence. Heuristics indicate it's an XFA form PDF containing an embedded script payload, suggesting exploitation for client execution. The benign URLs present are likely decoys or standard XFA schema references, not indicative of the malicious payload's destination.

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 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 script payload in PDF stream low 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 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
66579a3129bd0ba54162978dd3be37c8a31f301f649cf8539e98594966ebc652		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42646 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.