PDF malware analysis — malicious · ee7b4ebea232f146

MALICIOUS

PDF

12.5 KB

MD5: a6c042455031989531afa21041866de8 SHA-1: 35ea9a33199481d35fd6979588f8f312d8cd5bd8 SHA-256: ee7b4ebea232f146059553213e16a59e845c60831f20d7a6ed6509e1349aaed5

166 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The file is identified as a malicious PDF by multiple heuristics, including a critical ClamAV detection and an ML classifier. The presence of embedded JavaScript, detected by PDF_JAVASCRIPT and PDF_JS heuristics, indicates an attempt to execute malicious code. This JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to achieve its malicious objective.

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` `f4f66d038f17905259bde1ffdf733b5cd608aaea14aa152f15501d24805476c1`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11667 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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