MALICIOUS
118
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1027 Obfuscated Files or Information
The PDF file contains an embedded JavaScript stream that is heavily obfuscated, as indicated by the PDF_UNESCAPE heuristic. ClamAV also flagged this file as Heuristics.PDF.ObfuscatedNameObject. The primary function of the embedded JavaScript appears to be downloading and executing a second-stage payload, which is a common technique for malware delivery. Due to the obfuscation, the exact download URL or execution method could not be definitively determined.
Heuristics 5
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ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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unescape() call high PDF_UNESCAPEunescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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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_obj0006_000.js7935aec278956bd3a1c5d4c5ba6cd0f2febd1e3632ca9cfe8d51d88c95b23dde |
pdf-javascript-stream | PDF /JS object 6 at offset 0x1A3 | 15777 bytes |
|
Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
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