PDF malware analysis — malicious · deb15a47b03e9259

MALICIOUS

PDF

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

MD5: cd517e673161f8907101095d1ceae388 SHA-1: 90ba862fbfa2179af37bd72c362ea2c30be839fd SHA-256: deb15a47b03e9259a56befe89efaf0454f2a9c37eea92a6e5ade5e67fcc673ea

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, indicating an attempt to execute malicious code. The presence of JavaScript actions and embedded JS streams strongly suggests the document is designed to exploit vulnerabilities or trick the user into running malicious code, likely for downloading further stages of malware.

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` `7f97921679787df3c7bb0e04d0fafe50e5667467f5bd6950cb2346d7885f0d0e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74533 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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