PDF malware analysis — malicious · 9bab723ce6eb5d3e

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: 303b413728e1c503ee0934c193c869b4 SHA-1: 2202b31987c165b3e5ce517b1d940947d5240184 SHA-256: 9bab723ce6eb5d3e2fbd1617f3d88763f7f95ffc30ccabc30a366726807e5370

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, identified by heuristic firings and ClamAV detections. ClamAV signatures indicate the presence of 'Win.Trojan.Agent-36166', suggesting the JavaScript is likely used to download and execute a malicious payload. The PDF structure and embedded script point towards a common delivery mechanism for malware.

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` `a153910f9892b8e818380ddca06f08a444205a41c19623372282539fe05cdb9c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74827 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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