Malicious PDF / .XXX — malware analysis report

Static analysis result for SHA-256 45cbe444524893ca…

MALICIOUS

PDF / .XXX

14.5 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)
MD5: 8151e16e25ef429cd14bfcf7ce51c359 SHA-1: 65064e6bc12dcb663f7103efc08cb55c258bfae1 SHA-256: 45cbe444524893ca9ddb286260b5f1fd701a00299f6350f57703e81d8b0aa1c6
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, indicating the file's likely purpose is to download and execute a second-stage payload. The document body was unreadable, so the rationale is based on the heuristic firings and the ClamAV detection.

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
e49a108f7545768757b04d5caa96b198c8f77f1c2cea6bbd768f37e3257f908c		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 75136 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.