MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
T1566.002 Spearphishing Attachment
T1204 User Execution
The PDF document contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2008_2992 heuristic firing, specifically mentioning util.printf, strongly suggests exploitation of this known vulnerability in older Adobe Reader versions. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the obfuscation of malicious content. The embedded JavaScript is likely responsible for executing the exploit payload, leading to arbitrary code execution.
Heuristics 5
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util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (matched in decompressed stream)
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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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ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0006_000.js83c8a5ec6859407c31b39b3125bcbb28518ebf6aab42b4fa693ae02f089c80b5 |
pdf-javascript-stream | PDF /JS object 6 at offset 0x138 | 1333 bytes |
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