Malicious PDF — malware analysis report

Static analysis result for SHA-256 9340b1f0f90c3256…

MALICIOUS

PDF

14.4 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)
MD5: 49b7d7f827b41033410e7552cdf0fe61 SHA-1: 320b278bd2aad0397975f839c080a22383ecdd0d SHA-256: 9340b1f0f90c32565e7b2a25e1e93547a394f40205b22e7289c16ef84b3bd79d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) confirm its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload. The presence of JavaScript actions and streams within the PDF points to an attack pattern focused on exploiting PDF vulnerabilities or social engineering users to trigger malicious scripts.

Heuristics 4

  • ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36166
  • 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.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0007_000.js
c73b6f1c659466c85081b7cba35563fcb22e62aec7e494ce3e47863aba2f55ee		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 74290 bytes
Detection
ClamAV: Win.Trojan.Agent-36166
Obfuscation or payload: unlikely

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