Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f841c5ab28df70d…

MALICIOUS

PDF

43.0 KB
MD5: b805899aef4102c38c4fca6311ba4b4b SHA-1: dd5d8f7bcc7d8664b11662dbc274ce99aa0e04a5 SHA-256: 6f841c5ab28df70d5e26be7ad51f96d58484b58cfa21c42f37e73883c6e984d1
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 exploitation. Heuristics show an embedded script payload and an embedded file, suggesting the PDF is designed to deliver and execute a secondary exploit or malware. The embedded script, though obfuscated, likely attempts to download and execute a payload, aligning with T1059.007.

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
abe9a45e67942aa9179c11477a69c048b0943f7f67a9e61545f5f1d6f4354b2f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 43282 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.