PDF malware analysis — malicious · b068457c6124f80d

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: b84ee68d686ef8260d78fc6891570e58 SHA-1: 99617f49adcc5384c880f1a71d0d2ce65149e3ed SHA-256: b068457c6124f80ddb7fba43d370b796c47ef89d54f97cdbe3053edd65231b6c

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, which is a common technique for delivering malware. ClamAV detections of Win.Trojan.Agent-36166 strongly suggest malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although the specific actions are not detailed in the provided heuristics.

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` `21bc0bdd10d6d0d4c54dbd3f380511b37f9d78779494f3b80cbb311863f91412`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74755 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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