PDF malware analysis — malicious · 2bf3f988abb187f7

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: 29cb6a657e774ca8b227b7f102adfcff SHA-1: 8ea6d87c51e2a1f1ab225fdd1c927a2f471b6f5b SHA-256: 2bf3f988abb187f71eda93e1c1793cb83c99904d07569cc3dbed6f7d5f401b3b

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, which is a common technique for delivering malicious payloads. Heuristic analysis and ClamAV detections confirm the presence of malware, specifically identified as 'Win.Trojan.Agent-36166'. The embedded JavaScript likely facilitates the execution of this malicious payload.

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` `ae7cadcdaf91094176054060ab5ca5966e048edac90afea2c4965bca1617a8fa`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74747 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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