PDF malware analysis — malicious · aafbaed1f8bd2593

MALICIOUS

PDF

12.4 KB

MD5: 99f08c4f5689a75aa36a7a1d4ac5c541 SHA-1: 08beb3461fa344344dbd175fed893252e2ab45c0 SHA-256: aafbaed1f8bd2593eb510d9de852276e9128cfc31e730c13e8040e57d8a5efe4

166 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, flagged by multiple heuristics and ClamAV as malicious. The embedded JavaScript is the primary mechanism for exploitation, likely serving as a downloader for further malicious activity. The specific ClamAV detections suggest it's a known PDF exploit.

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` `fb0dba89854220bc1445442d1778776c93f121affae92df5c735671ea39f9d94`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11587 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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