PDF malware analysis — malicious · c0463eef72d4ca1b

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: df08ddc4a49e6d503458bb0a13400108 SHA-1: f644d9270bfd3481f99df355ab899d113920d504 SHA-256: c0463eef72d4ca1bce109268f6f9922c6d404094fa5bace9fe59447dee9f3cac

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by multiple heuristics, including ML classifiers and ClamAV, indicating malicious intent. The presence of embedded JavaScript, identified by PDF_JAVASCRIPT and PDF_JS heuristics, strongly suggests that the script is responsible for downloading and executing a secondary payload, as indicated by the ClamAV detection of 'Pdf.Dropper.Agent-7685820-0' and 'Win.Trojan.Agent-36166'. The ML classifier output of 0.999924 further reinforces the high likelihood of malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

ClamAV: Pdf.Dropper.Agent-7685820-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7685820-0
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` `ee3a400ab4730c61afce3ccc33704252c0533c4e23ce15678b6a6010d0711ef7`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74561 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.