PDF malware analysis — malicious · 2164af030ae6e842

MALICIOUS

PDF

12.9 KB

MD5: 7bfbd01253ce62cad1ad2b6fabc94362 SHA-1: 9e7d574e186c0c08a29a505053ba6fd792be4217 SHA-256: 2164af030ae6e842075ce11a78312f7091863ac8f5f8090539d2c3bdcd0bf900

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection 'Pdf.Exploit.Dropped-94' and the high heuristic 'PDF_METADATA_EVAL_STAGER' indicate this PDF is designed to exploit vulnerabilities. The presence of embedded JavaScript, identified by 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics, strongly suggests the execution of malicious code. This script is likely used to download and execute a secondary payload, a common technique for initial access.

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` `37de77ef99be3771774b68e0be6f3cc6b5e380788303edec0e436c0709da1c2a`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3178	331 bytes

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