PDF malware analysis — malicious · ada360e55d4c8740

MALICIOUS

PDF

59.8 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: lice (via ubst)

MD5: bc5976ed6da5671f762ce3a42b03c229 SHA-1: 3810f7f900795e5a824b9719a044e7e57c62fe95 SHA-256: ada360e55d4c87407c9effdb88c351887feaec2e09162f8368c7f7d919e33aca

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged as malicious by ClamAV (Pdf.Exploit.Dropped-94) and a machine learning classifier with high confidence. Heuristics indicate the presence of embedded JavaScript, suggesting an exploit attempt. The embedded JavaScript, although large, is likely responsible for the malicious behavior, potentially downloading and executing a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
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_obj0076_000.js` `bf90f20ab783de39558d0513534fd7fd31c21f79e0a254192ea5ea9a44ee69e4`	pdf-javascript-stream	PDF /JS object 76 at offset 0x955	51259 bytes

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