PDF / .000 malware analysis — malicious · 89052f64adc3c05d

MALICIOUS

PDF / .000

62.9 KB

MD5: cab9503288652d051961518cf3868733 SHA-1: f46cb101a6962a139a89ce95d83f44144ea86ed2 SHA-256: 89052f64adc3c05d2e1bb88e068823e88069198dbb179d262a4d1b64d2ac4d44

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1059.007 JavaScript

The PDF file contains embedded JavaScript that is obfuscated and uses the unescape function, indicating malicious intent. The critical CVE-2009-4324 heuristic firing suggests exploitation of a specific vulnerability in Adobe Reader. The embedded JavaScript stream, identified as 'javascript_obj0008_000.js', is likely responsible for executing the exploit and potentially downloading further malicious content.

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. (matched in decompressed stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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` `c83447d9fdb2e7fa65ac4d5c21909a47425016c379b288044091443a8390b26f`	pdf-javascript-stream	PDF /JS object 8 at offset 0x2D1	3487 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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