PDF malware analysis — malicious · c9aa425fd76570e2

MALICIOUS

PDF

1.4 KB

MD5: 44ad5f63858d8ab072a595a76cf5699d SHA-1: e72a64acb70b25cd43d97e324de630a66fed5c43 SHA-256: c9aa425fd76570e2cbbcc4e3d818121e4790efa4d7802e2fda395bb331954eb3

196 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, which is triggered by the media.newPlayer object, indicating exploitation of CVE-2009-4324. The JavaScript is obfuscated and uses unescape() for decoding, typical of dropper malware. ClamAV identifies this as Pdf.Dropper.Agent-7303463-0, suggesting it likely downloads and executes a second-stage payload.

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.Dropper.Agent-7303463-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7303463-0
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `286155c211addc31f4ad6b483bc38a497a87a63c18e93ac9fd4b19f50e39ae6a`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1240 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` `73aeda6768bade4acd5a83e7d62bd2c69c75162aad0b3fa83ddbc0a5ac5f490a`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x47E	261 bytes

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