Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f3bf6e4e9c5b6fb…

MALICIOUS

PDF

45.0 KB
MD5: 7ff91dc74258d9a8b0a9519640521597 SHA-1: 7c10f3f464307667d1d7a44b9b6d1e243057cbb2 SHA-256: 2f3bf6e4e9c5b6fb20293695454132b39a7734d53e2cec561891375519da1b69
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests a known exploit. The embedded JavaScript is likely responsible for executing the exploit, potentially leading to further stages of infection. The document body content is not indicative of a specific lure.

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
f4a8b8e105ba4b5db51730b91fb1c80014bd49f32fbc7771fd6b1898b430606b		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
5e60f01910e8e40bdc36331f7760f5b2cca0992b71e2b637f8790d67eba78cb3		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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