PDF malware analysis — malicious · 59f3434d02d7e56a

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: 053e365300d27e7772829895d0152fd8 SHA-1: e5ee6af61d4e220246342e5850dfe4da54ea4d1f SHA-256: 59f3434d02d7e56ab12358d71672d6ad10b810e1e96d4c0114779646f1ed39ce

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Static analysis revealed embedded JavaScript, indicating a likely attempt to download and execute a secondary payload. The presence of JavaScript actions and embedded JS streams further supports this. The SHA256 hash of the file is aa7a89392e1ac02746699b88a70f5835.

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` `7ecf59f3cdd52b6b65ef5cab6fa87233784112e9897ed54299d723be62f30068`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74804 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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