PDF malware analysis — malicious · 5219f5ae3c569e5d

MALICIOUS

PDF

14.3 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 9b759ae5a86b5543d126b18aff5c3356 SHA-1: a8ce0df5d05edfa4b4671778c50bddb2c5da98d2 SHA-256: 5219f5ae3c569e5dc618128b618ddcf9495d7592d701e0ee45d4b393e9ec083c

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 the document is designed to execute malicious code. The JavaScript's likely purpose is to download and execute a second-stage payload, contributing to the overall malicious nature of the file.

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` `40bc6ec6232714b37011cf52b06e0d666ee12183fc982b68de1959d97e45370c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74002 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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