PDF malware analysis — malicious · 1c94d4ba295ab719

MALICIOUS

PDF

12.4 KB

MD5: 452ad21ab9806ffb6a15710804be9181 SHA-1: 2b9ca2b6491a6739dafc9a300e4136ab3b48ab4b SHA-256: 1c94d4ba295ab719773da9801b7ba54c9221c53cea38257789cf51b60f232c9d

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The file is a PDF containing embedded JavaScript, identified by multiple heuristics as malicious. ClamAV detections indicate it's a known exploit targeting PDF vulnerabilities. The embedded JavaScript is the likely mechanism for delivering a secondary payload, as suggested by the 'Pdf.Exploit.Pdfka-9' signature.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36722 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36722
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` `a61734d53efe8c3ee85079efaf6af59065eb219af24015499953a91daebaccb7`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11631 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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