MALICIOUS
266
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The file is a PDF containing embedded JavaScript, which is flagged by multiple critical heuristics as an exploit. Specifically, the 'CVE_2009_0927' heuristic indicates exploitation of the Collab.getIcon vulnerability. The embedded JavaScript, despite some obfuscation, likely serves to download and execute a second-stage payload, a common technique for initial execution and further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution.
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PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTERPDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
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ClamAV: Pdf.Exploit.CVE_2009_0927-1 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.CVE_2009_0927-1
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unescape() call high PDF_UNESCAPEunescape() found — often used to decode shellcode in PDF JS exploits
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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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