PDF malware analysis — malicious · 53e36e2e82971835

MALICIOUS

PDF

1.4 KB

MD5: 0b608887aae92fa9720ee4f43ed5ff06 SHA-1: 2affc5dcf925e8ff5872befb6be2df606e2f8361 SHA-256: 53e36e2e82971835e8ee8d55ee8e5ac4d920fc606339f9a3ca30edfca081af7e

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious Link

This PDF file contains embedded JavaScript that is triggered by opening the document. The JavaScript is obfuscated but appears to leverage the CVE-2009-4324 vulnerability (media.newPlayer) in Adobe Reader to execute arbitrary code. The primary intent is to exploit this known vulnerability for code execution.

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` `fbbfe1543a0e9be5f1872dd275c830d10fef91da20b8b88616ead14c7dca4f06`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1252 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` `3aaf55f844e14ba0e3c0ad4806dd6727ffefa68625e2cfede4f186cc8aacfb77`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x484	264 bytes

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