PDF malware analysis — malicious · 55ca2f17f1dede73

MALICIOUS

PDF

1.4 KB

MD5: 810c7ce5050e9f43094aa9c8849057d6 SHA-1: 20455f8406246497ea0f38b4f20d734dad5d7e09 SHA-256: 55ca2f17f1dede73a658cf48f577ae9811fff0e6ef4e4b57e18fb5c2111a049b

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript, which is triggered by a CVE-2009-4324 exploit targeting the media.newPlayer object. This exploit is designed to execute arbitrary code, likely to download and run a second-stage payload. The presence of multiple JavaScript streams and the unescape() function indicate obfuscation techniques commonly used to hide malicious intent. The ClamAV detection further confirms its malicious nature.

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-18378 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-18378
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` `9e5e23dc42d4adf34452ea586aa26d5ef154ea000e96ce252680b6906910bbfb`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1243 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` `d5080e55fc2446cf1e2009166ec1259b9781565bf12569899b15e95263ead206`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x483	247 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.