PDF malware analysis — malicious · fdaa92750ebd5fd0

MALICIOUS

PDF

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

MD5: 7cab8cd81e6dc67e3dcc9fac8e791426 SHA-1: b3e37cc0cda9b2f2c30b853d3229916e56ab0d6a SHA-256: fdaa92750ebd5fd08c77de7040bae975d4d51de82a51825ae9c32cae6a2a5de7

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file triggered critical heuristics indicating it is malicious, specifically ClamAV detections for 'Win.Trojan.Agent-36166'. The presence of embedded JavaScript further supports a malicious intent, likely for exploitation or payload delivery. The document body was unreadable, but the combination of PDF format, JavaScript, and ClamAV detection strongly suggests a malicious PDF dropper or exploit.

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` `b609629a0eb9001d6af8068f61174a3b13093b54a46d301c70c772128471794b`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74221 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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