PDF malware analysis — malicious · a1c97356b108f1c1

MALICIOUS

PDF

3.3 KB

MD5: 32faa35e7eab74d5a7a11882230e5d9f SHA-1: f43e3059a886dfa4804c76e2ee0709c6e3af91fb SHA-256: a1c97356b108f1c1624fd7115a2c5378ee13d921fc4a2ac0a832acd7ecb990be

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-36121 and a machine learning classifier assigned a high probability of maliciousness. Embedded JavaScript actions and streams indicate the likely execution of arbitrary code, a common technique for exploiting PDF vulnerabilities. The specific exploit is not detailed, but the presence of JavaScript suggests an attempt to download and execute a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `02f56bc157bb79cf2950d50352c3fa4dc6b704aec5fd6e75d9fbc95be82654ad`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA88	327 bytes
`stream_000_off00000152.bin` `d497e30ba33001b00973060b66c59592c938c554544c63b94a13f290f1441fde`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x152	13100 bytes

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