PDF malware analysis — malicious · 4da229bd12361301

MALICIOUS

PDF

12.2 KB

MD5: a636cef5ea9193feea852b3196400154 SHA-1: 005e6b3cceff9e0fb7aed71b04b7adb17232eeae SHA-256: 4da229bd12361301997a0e22b05a53ad6c948092218a56414142e7085d6e4d3b

166 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, which is a common technique for exploiting vulnerabilities in PDF readers. ClamAV detections indicate this is a known exploit, likely Pdf.Exploit.Agent-36365. The embedded JavaScript is the primary mechanism for delivering the exploit, aiming to execute malicious code upon opening the document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36365 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36365
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.

Filename	Kind	Source	Size
`javascript_obj0076_000.js` `0bf8661022a36286fc2c4feb76e0ffb9950c7cb72511fadbed8b4267b7e0509a`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11395 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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