Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade8d5d3e6b5d6eb…

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: 4f135b11379a80794f6e797d20288760 SHA-1: 101efdb11c7b1b296d5570aeb5a3566de76d53a1 SHA-256: ade8d5d3e6b5d6eb9722ae822bb1a7c20f4be29831337a5808e5d1d349161cec
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) confirm the malicious nature of the file. The embedded JavaScript is likely responsible for executing the malicious payload, although its specific actions are not detailed in the provided evidence.

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
f53f372abc2e095e30d9f627e368b6998b0fbd21852f521f5a2fb83a349649a5
pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 74753 bytes
Detection
ClamAV: Win.Trojan.Agent-36166
Obfuscation or payload: unlikely