Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02b5dd8a5311cad…

MALICIOUS

PDF

45.0 KB
MD5: 2b959b96909e33e15030494607d9a69d SHA-1: 83c00b9ce051fc1256394e7db721c306bdd7d313 SHA-256: e02b5dd8a5311cad6f30753e0bc69798054d9d143f0c2aa3f108a5ee24d59fdc
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-36128' strongly suggests it's a malicious PDF exploiting a known vulnerability. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although the specific actions are not detailed in the provided evidence.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
2d8f7dc205c049660374e984158642b9b8c2ca3529eeb0e3234522c3e01cf838		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
b606d09404ffa46891cf0828ee4b49f0dfab560f7586fcf14d3b73af8c1a9074		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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