PDF malware analysis — malicious · f3033af0b0674235

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: 46b5814960ccfadea91b64000aa16c3e SHA-1: c7f23803376571cace930577022159d7e3f8c633 SHA-256: f3033af0b067423595c641755681c74b30720e5dff7f254d232ecdbf8f4f727d

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 to exploit vulnerabilities or deliver a secondary payload. The JavaScript action and embedded JS stream heuristics confirm the presence of executable code within the PDF. The exact behavior of the JavaScript is not fully discernible due to potential obfuscation, but its presence strongly suggests a malicious intent, likely involving the download and execution of further 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` `56a6260370e1fed8a354408ee6a90eadd0aecbe9e64480fc0767f08fe0d40059`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74760 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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