Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab8a1c3930c2da44…

MALICIOUS

PDF

3.2 KB
MD5: 74cd5169203fc63e1d66440c4c29d733 SHA-1: a709100bb91c836d4a21db38ec5108783f256c6b SHA-256: ab8a1c3930c2da4468320e047d7dbc0bab4cca36abe6080ea037cf9b4543890b
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36121' strongly suggests this is a malicious PDF exploiting a known vulnerability. The embedded JavaScript is the likely mechanism for delivering the exploit, although its specific function cannot be determined without further analysis. The lack of readable document body text means the rationale is based solely on the technical findings.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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
cc3a18e50d370cdfa86767759fbce826bb64107fb3497768d17eb9f2f2034ce9
pdf-javascript-stream PDF /JS object 7 at offset 0x9C6 497 bytes