PDF malware analysis — malicious · aaf62693e7506d14

MALICIOUS

PDF

1.4 KB

MD5: 71ba4c8dacfa3dd79a257d8e45dd69e6 SHA-1: 6942e7f27086c220a8b75f0971591b7f132429da SHA-256: aaf62693e7506d14ad586d4eac8eb578bb23aa6e08056208e81f0189c3d03c27

208 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

This PDF file is malicious and likely exploits CVE-2009-4324 using embedded JavaScript. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript, although not fully detailed here, is the likely mechanism for exploitation, potentially leading to further payload execution.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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-20456 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-20456
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` `ef117d3f2321f7002a906feed1eacbdea17ebe97147592a8257217a51709e9c8`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1276 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` `dba6f5c7ae28c38d5168a279c9def311161fe0e50f32fcc38ff726445fc43666`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48D	261 bytes

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