PDF malware analysis — malicious · c66ea0299a4158d0

MALICIOUS

PDF

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

MD5: fff1b449cde556f2b2137e81a68af705 SHA-1: dbedbef91637fee18b619b332b474475e5267ff5 SHA-256: c66ea0299a4158d04ff33a9fe62dfc7a5a8bb5c6ede949ddf28b3b7e1af6327f

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection identifying it as Win.Trojan.Agent-36166. Embedded JavaScript was also detected, which is commonly used to download and execute further malicious content. The ML classifier strongly indicated maliciousness. The embedded JavaScript likely facilitates the download and execution of 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` `7aff5c04138ab576dfdcd85e90994a1ec38e0da49e567e6d7bb6643cbb732d5d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	83773 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.