PDF malware analysis — malicious · 2f3a6377654e6c77

MALICIOUS

PDF

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

MD5: a3b44f11467a9f95cd9e181dd78c4bbe SHA-1: f6874d3422ad31d10c269758bb92c2e8ef19ee6d SHA-256: 2f3a6377654e6c77cf7c84428bdf5b8aeb5b74cf16cbaa36e1b7e8302899f42a

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The file is a PDF document that contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection further confirms its malicious nature, identifying it as Win.Trojan.Agent-36166. The embedded JavaScript is highly likely to be responsible for downloading and executing a second-stage payload, which is a common technique for malware delivery.

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` `7a6e231f79d6e618dd7917ccff5172311089f25a5382ed25f91fb93df7457f5f`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75126 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.