PDF malware analysis — malicious · 7e113bfa490ef81d

MALICIOUS

PDF

3.2 KB

MD5: 0ccd6c91469f5f2485827af3c18e3385 SHA-1: 3e09d07cbf9b5cec6910fa8981f14dd7e6dc0578 SHA-256: 7e113bfa490ef81d621d6d69afcaebcce66b660d19df4f4e6c63c3cbd5bb0158

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File Execution

The PDF file contains embedded JavaScript, which is obfuscated and uses the unescape() function. A critical heuristic firing indicates exploitation of CVE-2009-4324 via the media.newPlayer object, suggesting the JavaScript is intended to exploit this vulnerability. This likely leads to the execution of arbitrary code, potentially downloading 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: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `1f4cb04c2a9eba659e8e65fd852b53772d0288464ad3fadbc352fc148958f025`	pdf-javascript-stream	PDF /JS object 6 at offset 0x19B	2186 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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