Malicious PDF — malware analysis report

Static analysis result for SHA-256 3621e31992cc137b…

MALICIOUS

PDF

14.7 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)
MD5: 30498f4c7213853589cf7284b18475d3 SHA-1: a91091411608bf69a3ea2a3fb855ab28c1854622 SHA-256: 3621e31992cc137bd0d0ed62873f82097fab687d9d4fa4c553712b146963cfb6
136 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript within a PDF stream, indicating a likely attempt to execute malicious code. The JavaScript's purpose is presumed to be the download and execution of a secondary payload, a common technique for malware delivery. The document body itself does not contain readable content to further inform the attack pattern.

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
7fb0929d76b27e0b8700ded2567fe2b720eba20ba9b70635b626589deebe5800		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 76532 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.