PDF malware analysis — malicious · c064c054dec5005e

MALICIOUS

PDF

14.5 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 148254c439d007e6eb96a256f9af4253 SHA-1: 93ef8e8a3562aa73933af36f7494815307a07c98 SHA-256: c064c054dec5005ef3c8ce5a180478ceaa361ff0827ad1a0881efee4a710a5e9

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of JavaScript suggests an attempt to execute malicious code, potentially for downloading further payloads or exploiting vulnerabilities within the PDF reader. The extracted ClamAV signature is the primary IOC.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
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_obj0007_000.js` `445ae18798f26b5561374d1e79adf424829da2a7e4f0f45e8da483e9e4c0793d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74622 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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