PDF malware analysis — malicious · 2c4b76c727223ec7

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: 8d0e3d9eba326c3109d7f0e77b9062d3 SHA-1: c1ddea59f6296eddc4b4555a0275062e6786aa4d SHA-256: 2c4b76c727223ec75396a3293df0eba8433e8d5411084a8a7cbebd5aaae1699e

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, indicating the document's primary function is likely to exploit vulnerabilities or deliver a secondary payload. The presence of JavaScript actions and embedded JS streams strongly suggests an attempt to execute malicious code upon opening the PDF.

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` `c00aff7eef2539c9882a91501cf5db9339dceae879ad201942aeee683e927e62`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74789 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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