MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.001 JavaScript
The PDF file contains embedded JavaScript and utilizes ASCIIHexDecode and ASCII85Decode filters, indicating malicious intent. Specifically, the util.printf function firing for CVE-2008-2992 suggests the exploitation of this known vulnerability to achieve arbitrary code execution. The ClamAV detection further confirms its malicious nature. No specific family could be identified, but the exploit pattern is clear.
Heuristics 6
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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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ClamAV: Pdf.Exploit.Agent-36183 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36183
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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.jsf86b1e5220183f7c7e3ea8cddca0c8beed42f4aca8952f8c95b07b9823f2ed6e |
pdf-javascript-stream | PDF /JS object 6 at offset 0x138 | 1345 bytes |
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