PDF malware analysis — malicious · a64fed44cc8f5dc7

MALICIOUS

PDF

1.4 KB

MD5: 080419f59872b81c569357d1b4ce3c54 SHA-1: 8574171b2ea22c41c5cc3b945fcff427bcc3c212 SHA-256: a64fed44cc8f5dc7ea323a0afef49bfa936a0cb3219ca973d33812e3fdc114ef

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File

This PDF file contains embedded JavaScript that is triggered by the 'media.newPlayer' object, indicating exploitation of CVE-2009-4324. The JavaScript is obfuscated and likely intended to download and execute a second-stage payload. The presence of multiple JavaScript streams and the unescape function further support this analysis.

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` `397e70d2b993afbacbd5439995c223b400ba7ec383342a31e6d4fa0e9363f466`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1239 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` `026a12f034a3d1a7ef73d8e0b94e16f218cb8bc1e29308d0a9b17db8696053c9`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x47D	247 bytes

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