PDF malware analysis — malicious · f6929dfdf1a74a68

MALICIOUS

PDF

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

MD5: 7d49f8d0c0ecd42c40776aac7d3476d6 SHA-1: b87229bd9bd0b07e2491682feb1a504ddd6fab02 SHA-256: f6929dfdf1a74a68c7d6e98c5bbbc6d2d3264f98c89c1138126e35527638341b

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, which is a common technique for delivering malicious payloads. Heuristic analysis detected PDF JavaScript actions and embedded JS streams. ClamAV signatures confirm the presence of Win.Trojan.Agent-36166, indicating the execution of a known trojan. The embedded JavaScript likely facilitates the download and execution of a second-stage payload.

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` `097383bf2442f4717ad1e4752aba4827e8801a824cb899c1b952d1006674284e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74166 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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