Malicious PDF — malware analysis report

Static analysis result for SHA-256 858290f237a0439e…

MALICIOUS

PDF

12.5 KB
MD5: bdfe261d9e8aa48cb496d494335cd441 SHA-1: 93b276f27e22e7955c35cd3c231b88b24f7f94f7 SHA-256: 858290f237a0439e534ccf3c01f438e7feeac64efb90fe42194593058b04de06
106 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File

The PDF file was flagged as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection identifying it as Win.Trojan.Agent-36280. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The primary attack vector appears to be leveraging PDF vulnerabilities to deliver a trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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
b68224ca752992e6967ace3599e3824aeb60da0ca3af5d2480c7e17e4063191c		 pdf-javascript-stream PDF /JS object 76 at offset 0x383 11675 bytes

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