Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1bce8c8f286f7e6…

MALICIOUS

PDF

14.3 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)
MD5: 0cbc57e189b05755bfc4f093ae6fed30 SHA-1: fe44813ca8056d6d261543acd1f12a277ea8852a SHA-256: a1bce8c8f286f7e6e14f1503eaef540f4fb858b0b3fa557595d19868035c1856
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by ClamAV as Win.Trojan.Agent-36166, indicating a known Windows Trojan. Heuristics identified embedded JavaScript, suggesting the document's purpose is to deliver and execute this malicious payload. The JavaScript action and embedded JS stream are key indicators of this delivery mechanism.

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
6865b3f195814eeb0bfc2865963fe3b1ada112b03026fa128340a699d45eb53e		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 74417 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.