PDF malware analysis — malicious · 7a79e2b82144d579

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: 4d6aca83a4c5807f906146bdb92fb3b8 SHA-1: 34ccc040af035e3a8835daa9bee7ecd67a774e38 SHA-256: 7a79e2b82144d5790b9fc175a799755d620c8a45c992dab48eb2a8bdb59479e3

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. It contains embedded JavaScript, which is a common technique for delivering malware. The JavaScript is likely responsible for downloading and executing a second-stage payload, although the exact functionality is obscured. The presence of JavaScript actions and embedded JS streams points to a malicious script execution attack pattern.

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` `953558ba2c6e0d808b14c84aebad380f1dbddbab6b1315bfb0aadfb27edc7cb2`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74786 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.