PDF malware analysis — malicious · 8df9abcaf74b80f0

MALICIOUS

PDF

8.0 KB

MD5: d9d6149de5d04059803f91ef2ea2e805 SHA-1: b578d4ab8430f95ca7634ac5cc28b3d96e694efe SHA-256: 8df9abcaf74b80f0585022165e639c8e8d6aeb1b1199e485f0d9610c9e29f3e6

114 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-35903', and an ML classifier indicating a high probability of maliciousness. Embedded JavaScript was also detected, suggesting the PDF is designed to exploit vulnerabilities and likely download a second-stage payload. The specific exploit and payload are not detailed in the provided evidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

ClamAV: Pdf.Exploit.Agent-35903 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35903
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.
syncAnnotScan annotation-staging primitive low PDF_FOXIT_SYNCANNOTSCAN

PDF JavaScript calls syncAnnotScan() — a no-op annotation-enumeration primitive used by exploit-kit JavaScript to stage payload reads from annotation /Subject fields before eval(). Not a vulnerable sink itself; rarely seen in legitimate PDFs. (matched in decompressed stream)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `860eae5f96eb426380281c575a089242b50523bbb4bbb8dd765e582cd9c07d2e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1D2	294 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.