PDF malware analysis — malicious · 9d7774264c312ced

MALICIOUS

PDF

1.4 KB

MD5: 141812a70ad82e8055d1a0b17b15f3ea SHA-1: bc42a83443b256c7266aae42dc2be824a4d4b412 SHA-256: 9d7774264c312ced178fdc7ef66174e7195667880887f860e582f83648a18d00

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript that is obfuscated using unescape() and leverages the media.newPlayer object to exploit CVE-2009-4324. This indicates the document is designed to execute arbitrary code upon opening. The embedded JavaScript is likely responsible for downloading and executing 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` `98ffcb5ea1792f574729232141dd4aabd27233ec52bf687fea870bec0eb0a1c8`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1264 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` `c3fab48ffd9526311104a85e4a149ce629119594ac1637a5038aeba60f886178`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x483	252 bytes

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