PDF malware analysis — malicious · 8dc4a094d083c73d

MALICIOUS

PDF

1.4 KB

MD5: ec2e7cf6b23a1ece749c4df13e2bda5d SHA-1: 0f4af6e29539556e80b52c84a3c954f3fc350d89 SHA-256: 8dc4a094d083c73dde348c5070984a33fe3e6519913409e4506d698f35db02e3

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2009_4324 heuristic specifically points to a known vulnerability related to media player exploitation. The unescape() call suggests obfuscation of the JavaScript payload. The primary intent appears to be exploiting this vulnerability to execute arbitrary code, likely to download and run a secondary payload.

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` `df35eeb8de9ee4acbaac3f7f72b3c6fc4b0fc14e8111455ca8563ee91a3febce`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1260 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` `97c58899a651efdc20b57ce3e3b65f2393f98ff8348c7c682307b481c82760eb`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x487	263 bytes

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