PDF malware analysis — malicious · f9559efb027cf307

MALICIOUS

PDF

26.4 KB

MD5: f85fbd12053f9c1007bc6edb805523bc SHA-1: 0c29d6c363d9d1068a78364a46fde010ec345cad SHA-256: f9559efb027cf30755878aa4e544fa9721f5e122d88a4ffded7bda7aee80a385

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV (Pdf.Exploit.Agent-22312) and a machine learning classifier. It contains embedded JavaScript with an eval() call, indicating an attempt to execute arbitrary code. The JavaScript is likely responsible for downloading and executing a secondary payload, which is a common technique for initial access.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22312 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22312
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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_obj0032_000.js` `9e3da5fc40f81bd688da6b90b3e2eb8939af8b99b46f73014f26c20168765fd9`	pdf-javascript-stream	PDF /JS object 32 at offset 0x2CA	3298282 bytes

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