PDF malware analysis — malicious · 00d6bb0e6e04b807

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: 280ddb4db0d53af816edbf51840fd328 SHA-1: f8de34730227c206e136458e1439ad9bfb142e05 SHA-256: 00d6bb0e6e04b807ed7207436ef6c4f820457f6602bf8b172fa013c47f5aa817

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection for 'Win.Trojan.Agent-36166'. Embedded JavaScript was detected, which is commonly used to exploit PDF vulnerabilities and download further malicious content. The ML classifier also strongly indicated maliciousness. The obfuscated JavaScript likely attempts to download and execute a second-stage payload.

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` `b518404301e93e5a52d8b67d5342c224bda3978c784d6735d07b15fc68587822`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74605 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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