MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file was flagged as malicious by multiple engines, including a critical ClamAV detection for 'Pdf.Exploit.Agent-11438'. Static analysis identified embedded JavaScript and the use of ASCIIHexDecode filters, indicating an attempt to obfuscate malicious code. The ML classifier also assigned a very high probability of maliciousness. The embedded JavaScript likely attempts to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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ClamAV: Pdf.Exploit.Agent-11438 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-11438
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ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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Suspicious extracted artifact medium 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.
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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_obj0007_000.js71049d2f5330c415012e16274619ce54927f5675aa9204522cd6b314e8ccd9f0 |
pdf-javascript-stream | PDF /JS object 7 at offset 0x268 | 37665 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 long hex-escaped blob(s).
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