PDF malware analysis — malicious · faef891857dcf962

MALICIOUS

PDF

12.6 KB

MD5: 5c29d38400ecf3533a437dbae3138250 SHA-1: 199c82d02b3b0da7f902bd13353abf9a9c0cd767 SHA-256: faef891857dcf96241b3a8cfa26efdb87389423b31be57fe294349e924c16b61

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

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

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` `c125719665480b7e3537ef35813c1c6fb9beace1383efec23c508d83f5aa4407`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11830 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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