Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcb923fc2c13abaf…

MALICIOUS

PDF

5.3 KB
MD5: 79aaff510544c4660135fcc4cecaca8b SHA-1: 84c0eda72bf48a46dfb4ae4dc2ce09dd593884ba SHA-256: fcb923fc2c13abaf354e4857ab54ce5a83c1a5b66e910bd5c1b15667de32a531
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Dropper.Agent-1829100' strongly suggests this is a dropper. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware distribution. The document body is unreadable, but the heuristics and ClamAV signature are sufficient for this assessment.

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-1829100 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-1829100
  • 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_obj0052_000.js
3618cab25ce33aec8585e8c4239295bfc7740f6c80ffd008aeba9a87af1152bb		 pdf-javascript-stream PDF /JS object 52 at offset 0x16F 17719 bytes

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