PDF malware analysis — malicious · 2b25420e612bffa3

MALICIOUS

PDF

7.3 KB Authoring application: Tooqimeqipigafara (via bdf47Renizaxizo)

MD5: 98dd8d1ad9a4fe5b320bb521f3f03ad5 SHA-1: 1c219685667b4dea1df511b09757e63994c2b267 SHA-256: 2b25420e612bffa3b2d5511b9159942970e409e81cad605463a69cdcf4357826

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript is likely designed to exploit a vulnerability within the PDF reader, leading to the execution of malicious code. The specific JavaScript file, 'javascript_obj0010_000.js', is identified as a key artifact.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 3

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0010_000.js` `b53e27bbdeba8c818850cc3826b3d643c06114ca0ccd161a827d53f8e26598c4`	pdf-javascript-stream	PDF /JS object 10 at offset 0x130D	2214 bytes

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