Analysis
- user interaction
yes - max time kernel
119s - max time network
35s - platform
windows11-21h2_x64 - resource
win11-20260911-en - resource tags
arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
13/11/2026, 01:37
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
citron_v2.exe
Resource
win11-20260911-en
7 signatures
120 seconds
General
- Target citron_v2.exe
- Size 17.9MB
- Sample261113-b136qaev8w
- SHA256 f8d0e181e0becdc4dcc43c9aa77e1f8b1b169162d5be4660e6d85ed29ce89bef
- MD5 338a0da3b1066b67c3b5f91065ef385b
- SHA1 c56c4216c8263516f75faccf31dfaeaac3231274
- SHA512 e0fc5b26cd7094611a0434b1e8f1226d362a0c42fd83bad73ff8959cc3ee39681efdf613b177f3ebb70e231ed84dc48d3e810fa24519c85ec56653da109d44f6
- SSDEEP 98304:h++p2a+dkOnM/biXz1msKgeMtMtJRPYLu7xk8BW/LOQm4Tz2O2O8+HPvbitpT9QB:APzkbMplCRQL+BW/LOk0bCipe
- TLSH T146176B15BA9A95ADC06AC470834A86336A3178CB0B39B9FF45C456393F79EF05F38718
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1570888168-524493533-3242721904-1000\Software\Microsoft\Windows\CurrentVersion\Run\Citron v2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\citron_v2.exe\"" citron_v2.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain citron_v2.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname citron_v2.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 5344 citron_v2.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 5132 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 5132 AUDIODG.EXE - Suspicious use of FindShellTrayWindow 5 IoCs
pid Process 5344 citron_v2.exe 5344 citron_v2.exe 5344 citron_v2.exe 5344 citron_v2.exe 5344 citron_v2.exe - Suspicious use of SendNotifyMessage 4 IoCs
pid Process 5344 citron_v2.exe 5344 citron_v2.exe 5344 citron_v2.exe 5344 citron_v2.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5344 citron_v2.exe 5344 citron_v2.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\citron_v2.exe"C:\Users\Admin\AppData\Local\Temp\citron_v2.exe"1⤵
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:5344
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x00000000000004C4 0x00000000000004AC1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5132