Malicious PDF — malware analysis report

Static analysis result for SHA-256 7766c60b5e6fae1d…

MALICIOUS

PDF

42.5 KB
MD5: ec604afca0df0147c45ce78f37ae7449 SHA-1: 0598ad4c29e1f5e9b32a6927ae400cfbe8de256d SHA-256: 7766c60b5e6fae1dad50bd0b78427280fbcdf46c9dacd4dd9d62b546f5bf95f1
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF identified as malicious by ClamAV and an ML classifier, indicating an exploit is present. Heuristics confirm an embedded script payload and an embedded file, suggesting the PDF is designed to drop and execute a secondary artifact. The embedded JavaScript, though obfuscated, likely facilitates this execution chain.

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
a00f1deadd594f9a079aaa1b46d3ae2aa1a5334561a2cf3f7c2c8b7e77a60620		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42779 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.