PDF malware analysis — malicious · 95b69f30304ad154

MALICIOUS

PDF

7.1 KB Authoring application: Wezolokofecpo (via 33e72Nworeticakebi)

MD5: 8555102bd23ac6e86016aab0a0e8e800 SHA-1: 086da14d3296ae497033eaed837a1f9fc64741f3 SHA-256: 95b69f30304ad154eb686b7c2d5b544bbec53418cd43db58a27baab46c6bee1d

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection of 'Heuristics.PDF.ObfuscatedNameObject' further supports its malicious nature. The embedded JavaScript is likely used to exploit a vulnerability within the PDF reader, leading to the execution of a malicious payload. The exact functionality of the script is obscured, but its presence and the heuristic firings strongly suggest an attack pattern involving PDF exploitation.

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_obj0011_000.js` `437a5d40b54247c17dfb3ac60e39d3ecfad672a269694af1851a077d9726a8d2`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1342	2272 bytes

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