PDF malware analysis — malicious · 9bfb17bdd0153124

MALICIOUS

PDF

1.4 KB

MD5: 54d307af5c30b21bc3c82a861e7901e5 SHA-1: fce83f67f4ef059b640fadf8c87bd6bf26f1167a SHA-256: 9bfb17bdd0153124a6142c7f12b1f6153510e0eef9bea48786be3a7ad13afd7c

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious Link: 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 suggests the exploitation of a known vulnerability in PDF readers via the media.newPlayer object. The embedded JavaScript, likely obfuscated, is responsible for executing the exploit. The primary attack vector is the exploitation of CVE-2009-4324 to achieve arbitrary code execution.

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` `ac5ad57b8e3804f82571fdfb05bc0f3c2e8ebd039af9c7386e8c467a947a7a12`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1261 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` `68511345a09790bf8ca7a5b79a7cdc28ef035ad15dde62dffd233083a833a90f`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x487	263 bytes

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