PDF malware analysis — malicious · e87fe63e65ece496

MALICIOUS

PDF

55.8 KB

MD5: 4ed4b19b326a36ab88ef07eb4e6b3803 SHA-1: 072ada650b2681928ae6a068bcd0c34cde516ed2 SHA-256: e87fe63e65ece496d9faebf7f6027485e93042963bcb5f2b0efb757700463b6c

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Pdf.Exploit.Agent-36307) confirm its malicious nature. The embedded JavaScript is likely responsible for exploiting a PDF vulnerability to download and execute a secondary payload, a common technique for initial access.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36307 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36307
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_obj0008_000.js` `9550fb917b952fe0ee74887491c00bcaee9058816f4c3e7a80da5f2040ff7401`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	3193 bytes
Detection ClamAV: Pdf.Exploit.Agent-36307 Obfuscation or payload: unlikely

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