PDF malware analysis — malicious · 55ef134e831f3f60

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: 5d5f62ed35aa942f6096ed8a0ad88a32 SHA-1: c007d862ee0dff9dba8f82baac72979bb79541ab SHA-256: 55ef134e831f3f60b193196f4287979dc9449eacc3b8ebd7eef3b039a3de6070

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged by ClamAV as Win.Trojan.Agent-36166, indicating a known malicious signature. Heuristics indicate the presence of embedded JavaScript, which is often used to download and execute secondary payloads. The JavaScript stream itself is large and likely contains obfuscated code designed for malicious purposes.

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` `5c105815d3507b22a0bc729ca9639c88efba1b39b01330207b75211199e7cf09`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74599 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.