Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a759ad647c20388…

MALICIOUS

PDF

14.8 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)
MD5: 88bc8dd5458fb6119c24278a4a5c3643 SHA-1: c9ecb9f24644b092cc47734badb1cb401fd81662 SHA-256: 9a759ad647c20388079dd4bef4c0b87326a1030e40e47fad07cc29f0f464466a
118 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript with multiple eval() calls, indicating obfuscated code execution. The ClamAV detection 'Pdf.Exploit.Agent-36118' strongly suggests a known exploit. The JavaScript is designed to execute arbitrary code, likely downloading and running a secondary payload, which is a common technique for malware delivery.

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
  • 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_000.js
fbc034432f1e0e84adf592c44a0ed2425106106031d38612102b9bbe2ec3007c
pdf-javascript-stream PDF /JS object 13 at offset 0x336 13576 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 14 long base64-like blob(s).