PDF malware analysis — malicious · bcad55f25fb2034d

MALICIOUS

PDF

12.5 KB

MD5: be4fb9e39c32441c33e8633affd0f819 SHA-1: 8d0bfbad824d9528b447aacd7515f142c55f7986 SHA-256: bcad55f25fb2034dbe54d8eba146332ebe2f04761108c4d593e8c3fbb73564d5

166 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF contains embedded JavaScript, as indicated by multiple heuristic firings and the presence of an extracted JavaScript file. ClamAV detections further confirm its malicious nature, identifying it as a PDF exploit. The embedded JavaScript is likely responsible for executing the malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `c5846661a9843715f5716419aa88d602d906ca37ce745f52a4d76bace4ca2285`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11646 bytes
Detection ClamAV: Pdf.Exploit.Pdfka-9 Obfuscation or payload: unlikely

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