PDF malware analysis — malicious · 6a710eb04e5a33a7

MALICIOUS

PDF

7.7 KB Authoring application: Qimigiwova (via 31f9cBashemeriwesohitaro)

MD5: 8e169781d74a04fb8cc92c01c47578e9 SHA-1: c090670b1f18df3568bdd8c93109299d18ba4797 SHA-256: 6a710eb04e5a33a72eb1d9816fd2ec60d55f3653475966cc8ced9c6d011599ad

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains obfuscated JavaScript, flagged by heuristics as malicious and detected by ClamAV. The JavaScript is designed to download and execute a second-stage payload, as indicated by the embedded script's functionality. The ML classifier strongly suggests malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

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` `ed31b16df2b6492a4d5be85b534deca964c2f0e07a8443782787f4ed9c62c93c`	pdf-javascript-stream	PDF /JS object 10 at offset 0x1303	3192 bytes

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