PDF malware analysis — malicious · a9c390a37f37f102

MALICIOUS

PDF

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

MD5: e0f342a01f863cbccbee52866d974b64 SHA-1: 6c70083b75f5e58c45bbf2abf404321d3d4e35b9 SHA-256: a9c390a37f37f102cd75ae042c87e3dd56a6a0b4a03fdc7897dc2325c778316b

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The file is identified as malicious by multiple heuristics, including a critical ClamAV detection for 'Win.Trojan.Agent-36166'. The presence of embedded JavaScript, flagged by PDF_JAVASCRIPT and PDF_JS heuristics, indicates an attempt to execute code. This JavaScript is likely responsible for downloading and executing a secondary payload, a common tactic for this type of malware. The ML classifier also strongly flags this PDF as malicious.

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` `1341dfcbe21b318d48c817c31c113db148f8ab9d51b61d52f46ac87215eae402`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	76080 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.