PDF malware analysis — malicious · 3dfa078e6a805678

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: 994866d0bf715eaee296716f99fd3ded SHA-1: 352c60f9bfe99e2dd236d6a44ad5a5fe35920287 SHA-256: 3dfa078e6a805678f02f2a9bb39bc082103ab640fdb189c96983f9060fbb8ffb

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections confirm the malicious nature, identifying it as Win.Trojan.Agent-36166. The embedded JavaScript likely serves to exploit vulnerabilities within the PDF reader or download a secondary payload, contributing to the overall malicious intent of the document.

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` `fca31c7a221dcf60a258943fc1a684278f5c4a9deaed4559012dafbbc1ca9a90`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74761 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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