MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File
The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_METADATA_EVAL_STAGER heuristic indicates that this JavaScript is used to decode and execute further code, a common technique for dropping secondary payloads. ClamAV detection as Pdf.Exploit.Dropped-94 confirms its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.
Heuristics 4
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ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Dropped-94
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PDF metadata JavaScript eval stager high PDF_METADATA_EVAL_STAGERPDF 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.
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF 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.js27ca551c11a7b3290d578aff16b4a8c9b963152ff21ea52189a904833fec40a6 |
pdf-javascript-stream | PDF /JS object 76 at offset 0x300B | 331 bytes |
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