Malicious PDF — malware analysis report

Static analysis result for SHA-256 64c4c6fcc69efabc…

MALICIOUS

PDF

46.7 KB
MD5: 43f09775b0269e4a99e8a7400cf14ded SHA-1: 438c6da80db7efcfccaaae8a21aa2888b93f6846 SHA-256: 64c4c6fcc69efabc927f82464fd85eceab8a7f987abfff32f97813173c904259
176 Risk Score

Malware Insights

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

The PDF file contains embedded script content and is flagged by multiple heuristics, including ClamAV detection for 'Pdf.Exploit.Agent-36830'. The embedded script is likely responsible for executing a malicious payload, leveraging a known PDF exploit. The benign URLs present do not detract from the malicious nature indicated by the exploit and embedded artifact.

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
d17aac4e9b2c66364a63d64337772f8f51691c75cb91d9f70a44318dd288ff8a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 47017 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.