PDF malware analysis — malicious · 7aa10a1335648504

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: ab1919153f8b336222c524fdfb7154bf SHA-1: d8bc8bdbfd82488606fd05647f64af2c22cda455 SHA-256: 7aa10a1335648504b84dabb0134ccccb4849ccb3c8d848dd5b39ea4a86ef121d

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by multiple heuristics and a machine learning classifier, with ClamAV identifying it as Win.Trojan.Agent-36166. The embedded JavaScript, although heavily obfuscated, is indicative of a downloader or exploit loader. The primary function appears to be executing malicious code, likely leading to the download of a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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` `45efff7f77f1daffd369a2b59b5aad819a52eba6ecaa222c4cc3b9f8b93dbbd9`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74424 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.