PDF malware analysis — malicious · 030304059bc9403b

MALICIOUS

PDF

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

MD5: 816a3361dd747677dfd2d16d9a83cda1 SHA-1: 4045f780c5ee0d909379ee5a0f9f4bdd0b232c35 SHA-256: 030304059bc9403b6d079b3de883bf5eb9f75fef27301f84c75b47098c7ff982

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection. The embedded JavaScript, though obfuscated, is designed to download and execute a secondary payload, indicated by the 'Win.Trojan.Agent-36166' detection. This suggests the PDF is likely delivered as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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` `6ef1605c0a7f56a0ca0a4b1ccfc1d6f3c76fbdb9c9148d6f58e1a85f781dcf15`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74805 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.