PDF malware analysis — malicious · 3b2abfdb2c5228d9

MALICIOUS

PDF

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

MD5: 9010f926343403121b939898f7b2f57e SHA-1: c59df4b669ca1b30aaf0c267803586a460cc9eca SHA-256: 3b2abfdb2c5228d973af6f09ed5c2f043b3f8300cc435808f014103646b0ff6c

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged by ClamAV as 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 strongly suggests malicious intent, although the specific payload and delivery mechanism are not fully discernible from 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` `6e0710badeb80b97d8cd528e002be64cd0abdf404d6c992d3fcd3d6661806513`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75896 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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