PDF malware analysis — malicious · faa257a87ad06153

MALICIOUS

PDF

12.3 KB

MD5: 4c3c8bb8b12c4d7853d5cd29ddd58e90 SHA-1: 1c37b6347bd68f55716a43785aa074d9408c6f84 SHA-256: faa257a87ad06153f560cf9369c80d300e6c1192306a5762dbcd992d83387900

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings related to PDF JavaScript actions and streams. ClamAV detections confirm the malicious nature of the file, identifying it as a PDF exploit. The embedded JavaScript is likely responsible for executing the exploit, leading to the malicious behavior.

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` `10bd46638d5edf5aab525af06751d9933772426a07d309a8ad40bbced134a0b3`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11469 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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