PDF malware analysis — malicious · 4ad61941c94428e7

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: 6b68c2b345d9b49856d02bc83dfc37e8 SHA-1: 3e2c44475acc366b381ec6a06a476c3c7542f098 SHA-256: 4ad61941c94428e77ab512f16308c7de5d50537e06e22e98b156add388924268

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 'Pdf.Exploit.Agent-14687' and 'Win.Trojan.Agent-36166' on an extracted artifact strongly suggest the presence of an exploit and a trojan payload. The JavaScript is likely responsible for executing the exploit and downloading the secondary payload.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-14687 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-14687
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` `3e40a05153e31c13af317c0d56a0c5151db394eec38701497d59132f5497a206`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	76128 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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