Malicious PDF — malware analysis report

Static analysis result for SHA-256 d05713d0294f4e22…

MALICIOUS

PDF

45.0 KB
MD5: 181a3239e24387e845054f90a300842c SHA-1: b192a2cd56a047cba27b2d731339882456323676 SHA-256: d05713d0294f4e22aae7842f67215dae0c644b4f1ff966388ffc856fb850176c
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests malicious intent. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute arbitrary code, which is a common technique for delivering further stages of an attack.

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
de3dca74a29c195af8c99ab3820915a3c42ee28b89d9833dd0ce365a4491e6f3		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
7808ed200c2f964c5dc769f6cf36a5cd85308ad3195722744304a3eb259776bf		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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