PDF malware analysis — malicious · 97400f18f5ad2898

MALICIOUS

PDF

12.4 KB

MD5: 70e376cabda8a66edcee8959b3fe3c12 SHA-1: feac34c08267bd7d98880eb5037ee056913b410e SHA-256: 97400f18f5ad2898c3644e832247969ddc81ecbe8b854f7170781021210c2368

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted JS file. ClamAV detections 'Pdf.Exploit.Agent-36365' and 'Pdf.Exploit.Agent-36364' strongly suggest this is a malicious PDF exploiting a vulnerability. The embedded JavaScript is the likely mechanism for delivering a secondary stage, such as a downloader or backdoor.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36365 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36365
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` `ecb96c16666d44e644b302aa4fe0dddac565be01d27370b02ce189f5134cba79`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11601 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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