PDF malware analysis — malicious · ff2587661580941d

MALICIOUS

PDF

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

MD5: 533840c92a85d4c891597769c41ff36b SHA-1: 1f433e40ece90e113392ebb0930282a77e01ef63 SHA-256: ff2587661580941ddca21d6f9c80aef046e75fe218bf66897b3aff75956686d3

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections confirm this file is malicious, specifically identifying it as Win.Trojan.Agent-36166. The embedded JavaScript is likely responsible for executing the malicious payload, potentially leading to 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` `264883ba41e6fe0661d365fa4e414bb22bff64ce44cfbbd7fa80d2b96bfbaeec`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74343 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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