Analysis
- max time kernel
148s - max time network
113s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
14/10/2026, 16:57
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
FNInstaller.exe
Resource
win10v2004-20260911-en
3 signatures
150 seconds
General
- Target FNInstaller.exe
- Size 207KB
- Sample261014-vglbcayte1
- SHA256 a6f0c69cf415b12d93731c52a61b54e878eb70131bcfa28f59c4d703bff7e4cc
- MD5 8c8996a8b94f2beddd3b312617ca1d56
- SHA1 03854e4664635ee1f2cb32987e32eb3220ab7345
- SHA512 6b5de3ac0a3a4d8245e177b54b8e2f5e1785587d2994c7d4fc2d1870652dfe887fa41dd749478222b2c5dac378a25cdab1f995853add4826f758fb345538d038
- SSDEEP 6144:pnvZIrKWemCHbnmm7Dj8Hcqw+QbUV9iaxqXm9oq6xz+:VhIMHbn3j4VQKiaxq0H6
- TLSH T1D5246D2DB91505BAD5A7C0BCCA838A13EB72748943B2D6DF17D05BB50F239E0AA3F511
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4176 cmd.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\Hostname FNInstaller.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain FNInstaller.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1804 wrote to memory of 4176 1804 FNInstaller.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\FNInstaller.exe"C:\Users\Admin\AppData\Local\Temp\FNInstaller.exe"1⤵
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
PID:1804 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c cls2⤵
- Executes a command shell one-liner
PID:4176
-