Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dda03b89340dda5…

MALICIOUS

PDF

45.0 KB
MD5: 67ec65486580722acf73b9b113839450 SHA-1: 95a73096d7eb9e9707ac9452cdc8e947af16fe86 SHA-256: 3dda03b89340dda57f1d810881dfe4b123e59301588ecb6984c9925d322ab615
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 and the presence of extracted JS artifacts. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although its specific actions are not detailed in the provided evidence. The DOC BODY content appears to be malformed or obfuscated and does not provide clear user-facing lures.

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
088f03ffce96736fce73ef0a2ca88d47b3724aa5d10d6ff8644e8f3aad172926		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
d69f20c7ad7864448741a3c4ece7af63dc89da0af38a74a17bd6d1fceff0e6a0		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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