PDF malware analysis — malicious · 971c1abf7e44c1e1

MALICIOUS

PDF

58.0 KB

MD5: e370c4cd44fe001a22cca23bf37a1b92 SHA-1: eb115ae67ef070c85f71a3a1e47b60fd166c35a1 SHA-256: 971c1abf7e44c1e113fb397d0a7487da8c1850199e0072f69ec0b8f001755684

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The file is identified as a malicious PDF by ClamAV and a machine learning classifier. It contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities. The JavaScript is likely responsible for executing a malicious payload, as indicated by the 'Pdf.Exploit.Agent-36307' detection name.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `1c6b2b6a5b064a4a879f1444038dd043d5f340daee4bcb31c5613a3cb85840f3`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	3066 bytes
Detection ClamAV: Pdf.Exploit.Agent-36307 Obfuscation or payload: unlikely

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