Malicious PDF — malware analysis report

Static analysis result for SHA-256 55c578d3d906cac0…

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: 69f6e36eadcd75587de2d61358e0e259 SHA-1: f64eac2c291dff0e87ae0b7520d0a93f49d53f74 SHA-256: 55c578d3d906cac08b09f4b0e967ca3bbba3e65cf212e56049e2c91aa30f2e34
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, identified by heuristic firings and ClamAV detections. ClamAV signatures indicate the presence of 'Win.Trojan.Agent-36166', suggesting a known trojan. The JavaScript action and embedded JS stream are indicative of a malicious payload 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
9c730c095e4aff71541bfd879a4da06e590e9cf5489d603017c0757f818d9107		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 74539 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.