PDF malware analysis — malicious · ee4526a984b1410c

MALICIOUS

PDF

1.4 KB

MD5: 4eefad67308414598313f6477f1ae2b2 SHA-1: a251dc970729a5787cacc805d7044259e09d6020 SHA-256: ee4526a984b1410c234c35f9f6d03faa706fa620f36aaa1e57fbb2c517ae9ea9

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file contains embedded JavaScript that leverages the CVE-2009-4324 vulnerability via the media.newPlayer object. This exploit is designed to download and execute a second-stage payload. The presence of multiple JavaScript streams and the unescape() function indicate obfuscation techniques commonly used to hide malicious code. The file's structure and exploit target point to a malicious PDF designed for exploitation.

Heuristics 5

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF 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)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `d7a61ba83fae249666de3ae40a7a23582e0bb41bdbd80f5f2fe5f3535a37f632`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1274 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `d8fec6440468ecf76ea828b61cebaa4c0ded9a3955dddc40ace9f147278e1999`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x490	253 bytes

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