PDF / .IN_ malware analysis — malicious · 9a9d841cea54f287

MALICIOUS

PDF / .IN_

3.7 KB

MD5: 85cbf7792cf8115d5ceb2e21d2d003cd SHA-1: b9ed3d920be5317efc6561197bbd53433da1e4cb SHA-256: 9a9d841cea54f2876eda7e22917e9d8cbf2a22a2948f083b41185400f0bae22d

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes eval() and unescape() functions, indicating obfuscated code execution. The critical CVE-2009-4324 heuristic firing points to the exploitation of a known vulnerability in Adobe Reader via the media.newPlayer object. This suggests the primary goal is to execute arbitrary code, likely to download and run a secondary payload. No specific malware family was identified.

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.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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` `5282a05233126e5442bd4623b81eb6f6a368372765fe3016983cccfb98d54740`	pdf-javascript-stream	PDF /JS object 8 at offset 0x217	533 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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