PDF malware analysis — malicious · 99e27f8c91ea7333

MALICIOUS

PDF

12.1 KB

MD5: 04f2a0f20e688a2391ffdea61840c203 SHA-1: 33c21f6beef7c1eb902cdf43e21aaf88edf8797e SHA-256: 99e27f8c91ea733389465dc23d292f3951d4bc9c4cd68599006daea4a18d5916

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including ClamAV detections for Pdf.Exploit.Agent-36365 and Pdf.Exploit.Agent-36364, indicating it contains known exploit code. The presence of embedded JavaScript streams further supports its malicious nature, likely used to deliver a second-stage payload or exploit a vulnerability upon opening.

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` `1c30477bb4e955aeb213cc7ef465a6e27eb9501c71b0f59b86e8de1de4d972ee`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11332 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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