PDF malware analysis — malicious · d6a94b6e71e65e34

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: 4825c9f5c63fcb3ead215a8e87d31729 SHA-1: 265a9c5b3099f9acb4df03cd240173eb77cb49ad SHA-256: d6a94b6e71e65e34934212770a40a2c9771ad72d557c04419014506c30dac256

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The file is identified as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis detected JavaScript actions and an embedded JS stream within the PDF structure. The presence of JavaScript indicates an attempt to execute code, which is consistent with the malicious verdict. No document body text was available for further analysis.

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` `4265dcad8a225b10f8d15d000e2274dd97b60174f2239aa7bb8cd31ae7f20456`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74781 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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