PDF / .000 malware analysis — malicious · 2cb7f769c1e9c47e

MALICIOUS

PDF / .000

130.9 KB

MD5: 9bbf8133c61c26b9279042b5ede734b2 SHA-1: b77afc64608c77173429e14c56135436c1816db0 SHA-256: 2cb7f769c1e9c47eeb08396373e82dab300bfefd761112aad41594b29cc78688

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF document contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_UNESCAPE. A critical finding is the exploitation of CVE-2009-4324 via the media.newPlayer object. This suggests the document is designed to exploit this vulnerability to execute arbitrary code, likely through the embedded JavaScript. The extracted artifact 'javascript_obj0008_000.js' is also suspicious. The overall intent appears to be the exploitation of a known PDF vulnerability to achieve code execution.

Heuristics 6

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)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0008_000.js` `540372ef0f56ce17d953a58cb0377f2191d11c6b6b578bab0c473ecc5ce6ada1`	pdf-javascript-stream	PDF /JS object 8 at offset 0x2D1	3487 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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