MALICIOUS
138
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: Malicious JavaScript
The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. ClamAV detections (Pdf.Exploit.Agent-36117 and Pdf.Exploit.Agent-36307) further confirm its malicious nature. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to download and execute a secondary payload, a common technique for initial access.
Heuristics 5
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ClamAV: Pdf.Exploit.Agent-36117 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36117
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ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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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.
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0008_000.jsc67a5a2967bf62de32c7d82b7a1bcd7dec7809e89789e505b70de1c29aabe9cf |
pdf-javascript-stream | PDF /JS object 8 at offset 0x1E7 | 2674 bytes |
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Detection
ClamAV:
Pdf.Exploit.Agent-36307
Obfuscation or payload:
likely
Carved artifact contains 1 long base64-like blob(s).
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