PDF malware analysis — malicious · 2c29836b77f2a3ea

MALICIOUS

PDF

159.2 KB

MD5: ec51147d6792a8626059e367ccf041d3 SHA-1: 66c13a780e4701fb6058bf2e1562f835c0a3eaea SHA-256: 2c29836b77f2a3eac83a68f62e83381007e68c599112c9a0debc10f7e284df92

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical vulnerability, CVE-2009-4324 (media.newPlayer), was detected, suggesting the JavaScript is used to exploit this flaw. The embedded JavaScript stream, named 'javascript_obj0006_000.js', is likely responsible for further malicious actions, such as downloading a second-stage payload or exploiting the vulnerability.

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` `db760c1aee49cd1e7ceecfe510c1baf71f337227056f892771901e8466bbf70e`	pdf-javascript-stream	PDF /JS object 6 at offset 0xC0	3069 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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