MALICIOUS
118
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.001 Malicious Link
The PDF file contains embedded JavaScript that is obfuscated and utilizes the unescape function. A critical heuristic firing indicates exploitation of CVE-2009-4324 via the media.newPlayer object, which is known to execute JavaScript. This suggests the file is designed to deliver a payload by exploiting this vulnerability.
Heuristics 5
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media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (matched in decompressed stream)
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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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj111711_000.js80d0531cfcfd5f75493ff3aeefeb43b6a7281077b49972807cd2675ac97439ae |
pdf-javascript-stream | PDF /JS object 111711 at offset 0x197 | 294 bytes |
javascript_obj111712_001.js65cb939a72eb4c3ec9ba9ea62c42328be56bff2841318ec56fe4e920c807a2ab |
pdf-javascript-stream | PDF /JS object 111712 at offset 0x2B3 | 1978 bytes |
|
Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
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javascript_obj111713_002.js27f3b109bc63c59e2a8399ab722d92c7b35227805ca771c1aa8cfa43e62747e6 |
pdf-javascript-stream | PDF /JS object 111713 at offset 0x54D | 79 bytes |
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