Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e19b6ce115bbee6…

MALICIOUS

PDF

7.2 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)
MD5: 6bcbddf676b2982b03f051110e8cad00 SHA-1: 27caee462cb5933fa915699935d0b0f3e22675d6 SHA-256: 8e19b6ce115bbee6ea5fece9bc1bbe157496e2d33e9d8340813c2a922112f965
118 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.007 JavaScript

This PDF file contains embedded JavaScript with multiple eval() calls, indicating obfuscation and dynamic code execution. The ClamAV detection 'Pdf.Dropper.Agent-7281585-0' strongly suggests a dropper functionality. The JavaScript is heavily obfuscated, but the presence of eval() and embedded JS streams points to a malicious script designed to download and execute a secondary payload. The heuristics confirm JavaScript execution and obfuscation within the PDF.

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7281585-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7281585-0
  • eval() call high PDF_EVAL
    eval() found — commonly used for obfuscated exploit execution
  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0013_001.js
4aa66e6a5ce730597656b02863d5d4f0f8625925cab876677ab0f08d5794585b		 pdf-javascript-stream PDF /JS object 13 at offset 0x3DB 5754 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 5 eval/decoder/string-building token(s).

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