MALICIOUS
110
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file was flagged by ML classifiers and ClamAV as malicious (Pdf.Exploit.Agent-35572). Heuristics indicate the presence of embedded JavaScript, which is further supported by the extraction of a JavaScript object file. This JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Suspicious extracted artifact' heuristic. The ML classifier's high confidence score and the specific ClamAV detection point to a known exploit pattern.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Pdf.Exploit.Agent-35572 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-35572
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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_obj0007_000.jsd11026b9cd1bb7b8b69e4c3726f0753c1bb560181edbb81b4a162902a356658d |
pdf-javascript-stream | PDF /JS object 7 at offset 0x471 | 8815 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 eval/decoder/string-building token(s).
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