PDF malware analysis — malicious · 5a0bc61fe2b17f4b

MALICIOUS

PDF

1.4 KB

MD5: 5148f2d0b7d5c211423c49e96a1dec32 SHA-1: b6f4ccc78ed129797d609481a7f0bd908b72cbfa SHA-256: 5a0bc61fe2b17f4b31e646772004f3614db8fbbba5e97cc0bea028a052d66344

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution

The PDF file contains embedded JavaScript, which is obfuscated and uses the unescape() function. A critical heuristic identified the CVE-2009-4324 vulnerability, related to the media.newPlayer object, which is likely exploited by the JavaScript to achieve arbitrary code execution. The embedded JavaScript is designed to download and execute a second-stage payload.

Heuristics 5

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)
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` `3b4a9bf71643a7e36940033241bca70e10d4a944c776159e529625c0d3c6187e`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1261 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` `8d4d4b61c9ffa4a83ca0df6f70bc4da127c4b91e85998db463d9297cefe8526b`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x487	259 bytes

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