PDF malware analysis — malicious · 8bf900955bcf4be6

MALICIOUS

PDF

12.6 KB

MD5: 8f11dc0971b128f6a3879c30dc70f5d4 SHA-1: 30bb8b19fc4026bbcaad9eb747653af687eafc2e SHA-256: 8bf900955bcf4be6a32702d0c4fbb7856815cf2068b87cbd8b0cba4aca498911

76 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings. The critical 'EXTRACTED_FILE_CLAMAV' heuristic with the signature 'Pdf.Exploit.Pdfka-9' strongly suggests a known PDF exploit. The embedded JavaScript is the likely mechanism for delivering the exploit, aiming to download and execute a malicious secondary payload.

Heuristics 3

ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0076_000.js` `6d2522b49e21386999dc5077593094f9ceff102421573b0b6d2ed17056b4fe9d`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11802 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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