PDF malware analysis — malicious · 489b19f8b6c927d1

MALICIOUS

PDF

1.4 KB

MD5: 0de15c99aa80c0cbcc97dc0f8873c489 SHA-1: f6f07e31f32a55e74fe586f10f92a746c0e1bf08 SHA-256: 489b19f8b6c927d1e946d53e3764e3188d1e0dbcea7753c2e7646caee35ea16c

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, which is triggered by a vulnerability (CVE-2009-4324) related to the media.newPlayer object. 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 indicate malicious intent.

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` `317b88af9fc5737d63ce6c256efbc3b2a8c5894794dd57bde141e3dddb64234a`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1250 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` `da5a230ceef6c52ca049f448225a4e0e8850f7957ac3b5a463b7f60b6ff66d57`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x484	253 bytes

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