Analysis
- user interaction
yes - max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
13/07/2026, 01:18
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
JesterProcess.exe
Resource
win10v2004-20260513-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
JesterProcess.exe
Resource
win11ltsc2024-20260709-en
9 signatures
150 seconds
General
- Target JesterProcess.exe
- Size 269KB
- Sample260713-bpap2acy5x
- SHA256 db5e92e0c9f871aea0fdfe446a618b9025aa4813f6644c6f96c23587d5921c9b
- MD5 128eb63dd939315860a6a2e5de2f3971
- SHA1 77ada63314e4058605a8966bf08f4af5e50f3bd8
- SHA512 40a8f9660a9fc569ba53f022006df4d1093a72f5a2dc4c58da2f6afe99f4571895c5cab521f6a60c4e6dc43e2fed69ce9780fb3476745fba8727aa655eb77c06
- SSDEEP 3072:CDxexksic8LtSPS+FiZUjBVv114Y/N+vIboL63CrckCWKTbdgfZOFh:CDdFc8IP5sZUciRoCWKTRgZq
- TLSH T195447C5AEA950DFDDEE7C53989921C02FAB17C4943B0E6DF03D105661E13BD4AE3AB02
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\JesterProcess = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JesterProcess.exe" JesterProcess.exe - Contacts third-party web service commonly abused for C2 1 TTPs 4 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 5 discord.com 8 discord.com 1 discord.com 4 discord.com - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 2 ip-api.com - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 JesterProcess.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString JesterProcess.exe - Enumerates system info in registry 2 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS JesterProcess.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer JesterProcess.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName JesterProcess.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BIOSVersion JesterProcess.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1738198120-2966725515-3980530802-1000\{E470A868-26D3-4A2C-A443-BC7CD15CE3CE} JesterProcess.exe - Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe 3160 JesterProcess.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3160 JesterProcess.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\JesterProcess.exe"C:\Users\Admin\AppData\Local\Temp\JesterProcess.exe"1⤵
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3160
-
C:\Users\Admin\AppData\Local\Temp\JesterProcess.exeC:\Users\Admin\AppData\Local\Temp\JesterProcess.exe1⤵PID:2884