Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a6356a942642e1…

MALICIOUS

PDF

14.1 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)
MD5: 6f6725690166bc702f74fa0d42b2a0db SHA-1: 252c8a477fa38ea322699cc68f1c6fa4f2f0ea94 SHA-256: f6a6356a942642e1cb5fddc376223b3693366bf2f1d158c8fbf8b1dc85b9aefd
118 Risk Score

Malware Insights

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

This PDF document contains embedded JavaScript that is obfuscated and uses an eval() call, indicating malicious intent. The ClamAV detection 'Pdf.Exploit.Agent-36118' further confirms its malicious nature. The script likely attempts to download and execute a second-stage payload, though the exact mechanism is obscured by heavy obfuscation.

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
3a9e050521c2db6d8df45d5ad6009ec4681729bc33a4d2691cba2e8826729786
pdf-javascript-stream PDF /JS object 13 at offset 0x336 12922 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 3 eval/decoder/string-building token(s).