Malicious PDF — malware analysis report

Static analysis result for SHA-256 343053fc4c5a8322…

MALICIOUS

PDF

94.1 KB
MD5: 0b58bd79ef78d2907cdb86859d54c25b SHA-1: 17f06e19ba494694d5a829f016c70dcd238fd8e5 SHA-256: 343053fc4c5a8322a5f5e077c6b17517e36f57ba3e8cf12aa7d90eafe7f7dc26
168 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics, including ClamAV detections for 'Pdf.Exploit.Agent-6136306-0' and an extracted artifact. The presence of XFA forms and embedded JavaScript indicates an exploit targeting PDF viewers. The embedded script, though heavily obfuscated, likely attempts to download and execute a second-stage payload, a common technique for initial compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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_pdf_script_00000246.bin
eeefee3bd6ff7c69f08531fa104827d1a1fc8bf9ddbb2d3b60332bbf3f13a565		 pdf-embedded-script PDF raw stream script payload at offset 0x246 95638 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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