PDF malware analysis — malicious · 4bd950843b8a9fae

MALICIOUS

PDF

2.2 KB

MD5: c84896341d186da764f968b5259bcb43 SHA-1: 65100ce9c5fe432ae6ecfb5cd0fd4ecdfe15e5d4 SHA-256: 4bd950843b8a9faefdf5547c5583f7ca30c83ce6077280edf2f6521138432fb5

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File Execution

This PDF document contains embedded JavaScript, which is executed using the CVE-2009-4324 vulnerability related to the media.newPlayer object. The JavaScript stream is obfuscated and utilizes eval() calls, indicating an attempt to download and execute a secondary payload. The primary attack vector appears to be exploiting a known PDF vulnerability to achieve arbitrary code execution.

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.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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_obj0005_000.js` `47f15ec1610cbbf88c26a4c3a1f6b51d7be6bb7ffa5661c88ba2871247e37816`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	1732 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).
`javascript_obj0005_001.js` `a4a39a95112adeb7becbe348ae769bf8a4316eb18c0ca19b042a5144275ca0a0`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	42 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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