PDF malware analysis — malicious · 2823d18a304b1548

MALICIOUS

PDF

12.5 KB

MD5: 47848bd9c67d4fdb3b2be688708c8ac0 SHA-1: d93cd1caa70bddb1747310e426e1e57c25bd08a1 SHA-256: 2823d18a304b1548e5d144badb8bc618446f4bc5d1a93beae48accf1877744fd

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, specifically identified as a metadata eval stager. This stager is designed to decode and execute arbitrary JavaScript, which is a common technique for downloading and executing further malicious content. The ClamAV detection 'Pdf.Exploit.Dropped-94' further confirms its malicious nature. The confidence is slightly reduced due to the lack of specific script content to analyze directly.

Heuristics 4

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
PDF metadata JavaScript eval stager high PDF_METADATA_EVAL_STAGER

PDF JavaScript reads document metadata fields such as title, subject, or producer, decodes character data with parseInt/String.fromCharCode style helpers, and evals the recovered stage. This is a high-signal exploit-kit staging pattern.
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` `22d60d887da412853e9569cdac2783d5ffbec394c829e46c2d15ceb3e662ca37`	pdf-javascript-stream	PDF /JS object 76 at offset 0x300F	331 bytes

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