PDF malware analysis — malicious · d8ae68ec3b5f1633

MALICIOUS

PDF

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

MD5: 283696c710a4ad573ea9e861ded4854e SHA-1: 2d01f097f20e3d549b340655ecadef97137084b3 SHA-256: d8ae68ec3b5f1633291e268b4b5248d2590d2ef1e2a4cfddc250aaa88162ae94

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections for 'Win.Trojan.Agent-36166' on both the main file and an extracted artifact confirm its malicious nature. The embedded JavaScript is likely responsible for executing the malicious payload, as suggested by the ClamAV detection name.

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` `e0342e5bca0bc44b988ea2cd3182484062db61847ccd3e802836479ef2d49938`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	76586 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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