PDF malware analysis — malicious · 35eff90525b43662

MALICIOUS

PDF

1.4 KB

MD5: f0e0cb964e38fac202e2e2c43c99df14 SHA-1: 9a97d956da6ffd0efb4d6150e75ac45a267a5aff SHA-256: 35eff90525b4366222cc17cd67c48a1df36a10b5cc7690074f55d453e449a4f0

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

This PDF file contains embedded JavaScript that leverages the CVE-2009-4324 vulnerability, specifically targeting the media.newPlayer object. The JavaScript is obfuscated but appears to be designed to download and execute a second-stage payload. The presence of multiple JavaScript streams and the critical heuristic firing for CVE-2009-4324 strongly indicate exploitation.

Heuristics 6

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)
ClamAV: Pdf.Exploit.Agent-20459 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-20459
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` `5e9e9741a682184c634d1af3bc4535b4c9a70fef183e2bcf88ade5f86a29f402`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1270 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` `1dc272bd2bbf71e160e24888aca5f24cda2cd230045496780fd58623a457ce70`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48E	250 bytes

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