PDF malware analysis — malicious · 463d34455ee1ac6a

MALICIOUS

PDF

12.8 KB

MD5: 4480e61fe34844476c1f54cea25c5891 SHA-1: 5fac5b35e0f33cfe8a2e17dd94986312cd36a5e3 SHA-256: 463d34455ee1ac6a285931f5b32a16568347e151e928ca23af93fbf556828181

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by multiple heuristics including 'PDF_JAVASCRIPT', 'PDF_JS', and 'PDF_METADATA_EVAL_STAGER'. The critical ClamAV detection 'Pdf.Exploit.Dropped-94' confirms its malicious nature. The stager in the PDF metadata is designed to execute JavaScript, which is commonly used to download and execute further malicious content. No specific IOCs were extracted from the limited document body or scripts.

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` `9afa449ab9848ee65a5c90f40faad05d7974c26664ac3fdfa8bf3bbc42f0648d`	pdf-javascript-stream	PDF /JS object 76 at offset 0x311A	331 bytes

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