MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF sample contains embedded JavaScript and a RichMedia (Flash) object, strongly indicating an attempt to exploit vulnerabilities for client execution. The embedded Flash file 'kpnc.swf' is a key artifact. While the embedded URL is confirmed benign, the overall structure and heuristic firings point to a malicious intent, likely to download and execute a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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RichMedia (Flash) high PDF_RICHMEDIAPDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
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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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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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Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://adobe.com/AS3/2006/builtin
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
kpnc.swfd649187d10bf6dee4a36e0b0a5af01520ac2dc24f43d0fc914f380472e9c3c82 |
pdf-embedded-file | PDF EmbeddedFile object 16 at offset 0x427 | 11885 bytes |
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