PDF malware analysis — malicious · c40c6a9c4e4b867b

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: 4dca20c759e5bb11dc76a7bd191fec99 SHA-1: d3673a735f9888a642eae3595593a80c598565eb SHA-256: c40c6a9c4e4b867ba4ed54acc61fbf7ba662261638d122ee714b846885528fe5

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) confirm its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery via malicious documents.

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` `cdb1e6b59c0ed659170aed9a5ea54da19f3220d37ea44b3530e2b93f3bb8c582`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75239 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.