PDF malware analysis — malicious · 24c30423d9476105

MALICIOUS

PDF

12.3 KB

MD5: 5620f7b4aa0a9e6b22a6975ee6015c3b SHA-1: 5065ecfbc8c26258945ae32a97673c9c9ca0c59d SHA-256: 24c30423d947610505366c47f5aa948c1158cbc88852f04a12e2665447cc88b0

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The 'PDF_METADATA_EVAL_STAGER' heuristic suggests that the JavaScript is used to decode and execute further code, a common technique for exploiting PDF vulnerabilities. ClamAV detection 'Pdf.Exploit.Dropped-94' confirms its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

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` `c5aee147d4c58d9eed2ee79e6d2b0b8cc1e57e83168a649557a8bbfec5798701`	pdf-javascript-stream	PDF /JS object 76 at offset 0x2F0A	331 bytes

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