PDF malware analysis — malicious · 9966e2302a9b4486

MALICIOUS

PDF

12.4 KB

MD5: bbda61c864562f228b92c77ca464a39f SHA-1: 42632cad30be5f327b59b9cda3283c5924a103ad SHA-256: 9966e2302a9b4486453988eea813e7dc460c238d0e025daedf3ffb267e819135

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically indicating an exploit within the PDF structure. Embedded JavaScript was detected, which is likely responsible for executing the exploit. The ML classifier strongly supports the malicious verdict.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36722 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36722
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` `e8641f0d432911d1fa89d600b782570f3c837e537ad0f2e287ffa4cec3f7e8e2`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11592 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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