PDF malware analysis — malicious · f2fb3bbfe83f3822

MALICIOUS

PDF

12.4 KB

MD5: 6b5b3c3c5295c371be64c2e59432920d SHA-1: 13e76396d0917e97925c3d74e982df9489457991 SHA-256: f2fb3bbfe83f3822bd10c9d1b90a12e8e952d1f8a004bb5d4c4fefd2c9896e84

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The file is a PDF containing embedded JavaScript, indicated by multiple heuristic firings. ClamAV detections (Pdf.Exploit.Agent-36365 and Pdf.Exploit.Agent-36364) confirm its malicious nature. The embedded JavaScript is the primary mechanism for exploitation, likely serving as a downloader for further malicious activity.

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` `8de7d90ce2debf355053cc3f126be1a2b83714bf327c4bac0ba62ecb461aa655`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11556 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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