PDF malware analysis — malicious · aeba13880c149d42

MALICIOUS

PDF

1.4 KB

MD5: 699ef1201f573fc730195bba7c796f03 SHA-1: b5d3695cf31e35cb0709c577624f7a41d8c5a36a SHA-256: aeba13880c149d42ff547fd7575b507ecc1b47f0cb0533711f07dc16e36f5940

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript, which is triggered by a vulnerability (CVE-2009-4324) related to the media.newPlayer object. The JavaScript is obfuscated and likely intended to download and execute a second-stage payload. The presence of multiple JavaScript streams and the unescape() function further indicate malicious intent.

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)
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `154a982cb37c135be88544b2ceac581fbf45800a5d6d0aa63c47a9ec22e97f2a`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1300 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` `4f2b00e404482d6254a38a9c06a0ad3240d9878dbef730ba85c88471cd2c9c16`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x495	273 bytes

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