Malicious PDF — malware analysis report

Static analysis result for SHA-256 feb324ca55ce69a5…

MALICIOUS

PDF

15.2 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)
MD5: ca4b300466c789e77ba1b5ba72767039 SHA-1: fbc675c97afbded4aa921c89d9dc07c6a6b32a44 SHA-256: feb324ca55ce69a5afcff894a03650b25576ce13760a81b83ad666710080bfb5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, which is a common technique for delivering malicious payloads. ClamAV detections of 'Win.Trojan.Agent-36166' strongly suggest malicious intent. The embedded JavaScript likely facilitates the execution of this detected malware.

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
da5aeffb73556fba9ae9bf08e5299b13171d0487e3bec4ef12892222e601ab98
pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 84761 bytes
Detection
ClamAV: Win.Trojan.Agent-36166
Obfuscation or payload: unlikely