PDF malware analysis — malicious · 0bbf8e5ee62727e0

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via 146e0Tibedegabala)

MD5: 3d87456cc100406f2ac7d0b1c420309e SHA-1: 7fd0cfd771624b76190d22e0ab0c4357c09ee15e SHA-256: 0bbf8e5ee62727e02e36a86ad26f1efc18f2f305225f28fa64e3f8412dce6818

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, flagged by multiple heuristics and identified by ClamAV as Pdf.Exploit.Agent-36142. The JavaScript code is obfuscated but appears to be designed to decode and execute a second-stage payload. The presence of JavaScript actions and embedded JS streams strongly suggests an exploit targeting PDF viewers, likely delivered via spearphishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36142 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36142
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_obj0010_000.js` `d4dce4f95f7146e3b127d68edf45ceb045483a205d9e9a2a53d6e6b80d83b663`	pdf-javascript-stream	PDF /JS object 10 at offset 0x1230	1728 bytes

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