Malicious PDF — malware analysis report

Static analysis result for SHA-256 b424bf78b429a299…

MALICIOUS

PDF

12.4 KB
MD5: 58b98ecf2f0d87e30f1d17cb2e88753c SHA-1: d021e6756223bded54ae4f8472c38e5dc7c4c0a7 SHA-256: b424bf78b429a299bf43c6cdb7afff72d39ab3f412321814e5db16e95a4ef418
76 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, identified by heuristic firings PDF_JAVASCRIPT and PDF_JS. ClamAV detection confirms the file is malicious, specifically as Win.Trojan.Agent-36280. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36280 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36280
  • 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_obj0076_000.js
f221c0217d5defac5b650c212b576c17e5226c1c49986bdfd0480d1de24d52fe		 pdf-javascript-stream PDF /JS object 76 at offset 0x383 11541 bytes

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