PDF / .1 malware analysis — malicious · 9acb97c3edb15c7c

MALICIOUS

PDF / .1

1.4 KB

MD5: 8960c260c16c55c857398917897e2292 SHA-1: 2c6fcd6dc07baab9f8461af508270654687a96b4 SHA-256: 9acb97c3edb15c7c7cc48d401c7be79bb0cb52cef54bb1789591bcbd61cf1e66

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File Execution

The PDF file contains embedded JavaScript, which is obfuscated and uses the unescape() function. A critical heuristic identified the CVE-2009-4324 vulnerability related to media.newPlayer, indicating the JavaScript is likely intended to exploit this flaw. The script's purpose is to execute arbitrary code, likely leading to further payload delivery.

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` `6c52ee6cad289549997972b2a73b2751b2152901afd5959fff14c5d821ce006e`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1268 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` `dbf1ba62c5c0eae554e9a47defd977743af3f9fdf00115d02f8b09da543a84ab`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x488	258 bytes

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