PDF malware analysis — malicious · dad8156fe44d8d2e

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: 668dcc0a985725eaeeba504af845540e SHA-1: d8c579de72b03e0e6b23565b47b71980aa35d6cc SHA-256: dad8156fe44d8d2e40b042ece70ba590f19313d4f65e1ad577ed485c68779351

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, 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 is likely responsible for executing the malicious payload, although its exact function is not detailed in the provided evidence.

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` `59084bbc4d6fbac82730a882eb0a1b9dd4676cad170db24952c7a809adc83e0e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75196 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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