Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee06adbdcdb61089…

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: 8f8e49173e8024d0874dc5744c467af2 SHA-1: 1f5455919775fded697207fbcf2edd85c960d431 SHA-256: ee06adbdcdb61089f9826f1d456b59543ec00097f0cac7b9c11a01aa2b68378f
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file triggered critical heuristics indicating it is a dropper, with ClamAV detecting it as 'Pdf.Dropper.Agent-7321310-0' and an extracted artifact as 'Win.Trojan.Agent-36166'. The presence of embedded JavaScript further supports the dropper functionality, suggesting it is designed to download and execute additional malicious content. The document body was unreadable, preventing a more specific assessment of the lure.

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7321310-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7321310-0
  • 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
d1d939ef7f176f091accd2887608b8de45a830864b9f2ad1bef6400c8a35f4ab		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A5 83850 bytes
Detection
ClamAV: Win.Trojan.Agent-36166
Obfuscation or payload: unlikely

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