PDF malware analysis — malicious · a5d84128d5c642fc

MALICIOUS

PDF

1.3 KB

MD5: 6caa2ac3119228c0625ef6bde470a412 SHA-1: 1c55503c720c7ac518604a22ae8ddb45554342da SHA-256: a5d84128d5c642fc98bbffd4c7e81538bcee04ed8715a5877f58c653cf7b882c

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Exploitation by User Interaction

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability via the media.newPlayer object. The JavaScript utilizes an eval() call, indicating it's designed to execute arbitrary code. The extracted JavaScript streams, particularly javascript_obj0005_000.js, likely contain obfuscated code intended to download and execute a second-stage payload, although the exact nature of the payload cannot be determined from the provided evidence.

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` `6798fa65b1a13f52e8441171d9c1ca784759bba4f95fb77a3cee46b9e13389d6`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	852 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).
`javascript_obj0005_001.js` `ca02d2d29a61a078e86fe8f9e778118a5673ba00c5c069052a707663f3351299`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	33 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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