PDF malware analysis — malicious · f38531030d7de3e6

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: 091630a2ab95534df917a091c78db3a1 SHA-1: 0d604760d13916cecd75c26218c186f277deda20 SHA-256: f38531030d7de3e65af66cd5b2280d73890e208541313bed78b68d0062f46d88

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, which is a common vector for malware delivery. ClamAV detections of 'Win.Trojan.Agent-36166' strongly suggest malicious intent. The JavaScript's specific actions could not be fully determined due to obfuscation, but its presence in conjunction with the ClamAV signature points to a trojan downloader or agent.

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` `2af6114df8a269c5a614f4143174f030fb576f51850a2d4401584b5095ede151`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74623 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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