PDF malware analysis — malicious · 46621a7d32cab9d4

MALICIOUS

PDF

1.4 KB

MD5: b432433da0f424a22d64462e4552cabe SHA-1: 28d6712f4f7147dc3a94f95d6981d0165c178fe9 SHA-256: 46621a7d32cab9d448c500313474f04fbce4afb0a9c46bf19397868196c43a86

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript that utilizes the unescape function and exploits CVE-2009-4324 via the media.newPlayer object. This indicates an attempt to execute arbitrary code upon opening the document. The ClamAV detection further confirms its malicious nature. The primary attack vector is the exploitation of a known PDF 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: Pdf.Exploit.Agent-21199 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-21199
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` `23d943a55594c22cd5d0390efd0af0e6b651d27e6dc65d518818115bcb8a2e41`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1251 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` `bc1a8deb4ed2e6ff0074884b9e9db6fee90ac1b2a3647789cb3bcef3a1eb77cb`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x483	249 bytes

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