PDF malware analysis — malicious · e939a30e75e8c948

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: cb6d7f940caf3baa98ea2d58706804b7 SHA-1: 73b5c3ad7e3fe45b3b5022eeb4ad9659272e0b70 SHA-256: e939a30e75e8c94871370aa0c968808fc784ecee6cd19c5d329be3c654b0bf8f

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) confirm its malicious nature. The embedded JavaScript likely attempts to exploit vulnerabilities or download further malicious content, aligning with common PDF-based attack patterns. The presence of JavaScript actions and streams points towards T1059.001 and T1204.002.

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` `9c9a6aa5cec372fa695cfd3b9eb979c24b03c6d9b661dd0b614d55d0912ba713`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74418 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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