PDF malware analysis — malicious · e285cc1367c9135d

MALICIOUS

PDF

14.6 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 2504fedc31435adf8fc834e9aef8abd5 SHA-1: 09481fc3e579a162754b6fdf82f40f1e9ca7f95f SHA-256: e285cc1367c9135dac43132141e0828f8a8fc5364fe8a8d575bce8ea849aaad0

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The file is identified as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis detected embedded JavaScript, indicating an attempt to execute code. The PDF structure and the presence of JavaScript actions strongly suggest an exploit targeting PDF viewers to run malicious scripts, likely to download and execute further payloads.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
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_obj0007_000.js` `aa6852f27995ead6e19c3d3243ab5207da2f61653a7123977fc29ebb84e2665c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75233 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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