PDF malware analysis — malicious · 45783cdfc6b6f0ea

MALICIOUS

PDF

12.1 KB

MD5: 7543895dc9ba2e0e1fc0dd3340ead889 SHA-1: 1ae390cb88db8bc7f6268ccd8146d345253777e5 SHA-256: 45783cdfc6b6f0ead98d0487890ef6826f3c62f4e70273ffff2b807aa6d97a25

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The sample is a PDF file that contains embedded JavaScript, indicated by multiple heuristic firings. ClamAV detections 'Pdf.Exploit.Agent-36365' and 'Pdf.Exploit.Agent-36364' strongly suggest exploitation of a PDF vulnerability. The embedded JavaScript is the likely mechanism for executing the exploit, which is commonly used to download and execute further malicious content.

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` `d2b5b219a4c0e76d4379347ae87e27a8b876ffa79e792b3565e7ec0b082484e9`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11296 bytes
Detection ClamAV: Pdf.Exploit.Agent-36364 Obfuscation or payload: unlikely

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