PDF malware analysis — malicious · a6cf61460ba6d8e1

MALICIOUS

PDF

12.6 KB

MD5: fe7a5ac752fb24553f05dde665b163bd SHA-1: bc06a5a38db5a55fbe95a31375ac0570d5cf78e8 SHA-256: a6cf61460ba6d8e1e31a95dccf81e70321151924d7ec70bf3bad66a32f2b3916

76 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection of Pdf.Exploit.Pdfka-9 further suggests a known exploit is present. The embedded JavaScript is likely designed to download and execute a secondary payload, a common technique for initial access.

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` `4e3245428a4a4bfcca0024e30b9172e8078693d11991bbd46f6d55130cb87ea8`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11777 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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