PDF malware analysis — malicious · c50d4571c3483c7a

MALICIOUS

PDF

1.4 KB

MD5: 34b35d25ac3b51280c35d0ff0be45ab7 SHA-1: 0479abf7cafa7ce1197cd8ab8b38e5053b9cb71c SHA-256: c50d4571c3483c7a7b27f88bd34f48104938426badf072ab1e37831d198ae61c

118 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF document contains embedded JavaScript, which is triggered by a CVE-2009-4324 exploit. The JavaScript is obfuscated and uses unescape() to decode its payload. The primary intent appears to be the execution of arbitrary code via the identified vulnerability, likely leading to a further stage download or 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` `2df6f14cf1786b931ab65ead60cbf8101075ca8dde37112215ffa94de66f98f7`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1265 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` `4eeae6ea0e2817e6a3d5109a7854d6c5ca1f0041a1601ed3a5a42869f5d29c28`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x47F	257 bytes

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