PDF malware analysis — malicious · d4b43720357b9af8

MALICIOUS

PDF

12.3 KB

MD5: 3b6a976cc7549cad75e3a031d7d116c7 SHA-1: b34d10c47eeed490142222c1fef19c278918d8dc SHA-256: d4b43720357b9af8cc1f32cbac299e2caa88b05f80f0b4b3d7ccc7a6d8d41c30

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings related to PDF JavaScript actions and streams. ClamAV detections confirm the malicious nature of the file, identifying it as a PDF exploit. The embedded JavaScript is likely responsible for executing the exploit, leading to the malicious behavior.

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` `9c5622de80af842dc618e43dc3ba86977fe9504dc19226264c7463ca674accd3`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11449 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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