PDF malware analysis — malicious · 887edc268f6af895

MALICIOUS

PDF

1.9 KB

MD5: 1005c722fe551b684bd4142b1c2f3e20 SHA-1: 26a1e84b224f90685082e9519ae9ae27b5a8d048 SHA-256: 887edc268f6af89575d2e91d12e1fcef9ea00738396102c098a2ce813a02aa58

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF document contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2009_4324 heuristic firing related to 'media.newPlayer' suggests exploitation of a known vulnerability. The JavaScript likely attempts to exploit this vulnerability to achieve arbitrary code execution, as suggested by the unescape() call and obfuscation indicators found in the extracted artifact.

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.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0005_000.js` `2001c22ccbd1a2c9a2087c07557128ba42051c8da57efa82645c8d42a5658fee`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	1443 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0005_001.js` `1f84b51c57cd17f03ca4e813ac9da37262f2b978467f186b0e4df17364a332e1`	pdf-javascript-stream	PDF /JS object 5 at offset 0x117	36 bytes

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