PDF malware analysis — malicious · 09bd3122accead69

MALICIOUS

PDF

24.9 KB Created: 2011-72-51 03:25:00

MD5: b4b2f9913c0dcdc57820d531810c31f8 SHA-1: 0972ac14bbb11e35d090efaacc906f3d8550b8df SHA-256: 09bd3122accead69ad690808d403f396c161c2cb6425ba8a02d930b4731eab53

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample contains embedded JavaScript that is obfuscated but appears to construct and execute a command. The script's logic suggests it attempts to download and run a secondary payload, indicated by the ML classifier and ClamAV detection. The primary technique observed is the exploitation of a PDF vulnerability to achieve client-side execution via JavaScript.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36199 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36199
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_obj0001_000.js` `d114e5d7825f81ad1e070073fb986365f644318874685b02d53dc636cdde1ae6`	pdf-javascript-stream	PDF /JS object 1 at offset 0x613E	443 bytes

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