Analysis
- max time kernel
150s - max time network
142s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/09/2026, 12:33
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NXGCSS/NXGCSS.dll
Resource
win10v2004-20260513-en
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
NXGCSS/NXGCSS.dll
Resource
win11ltsc2024-20260709-en
2 signatures
150 seconds
Behavioral task
behavioral3
Sample
NXGCSS/NXGCSS.exe
Resource
win10v2004-20260513-en
2 signatures
150 seconds
Behavioral task
behavioral4
Sample
NXGCSS/NXGCSS.exe
Resource
win11ltsc2024-20260710-en
2 signatures
150 seconds
General
- Target NXGCSS/NXGCSS.dll
- Size 45KB
- Sample260910-prh13stbpb
- SHA256 f1d0b923f2a6e33e439522171fc65645bb201ab05706b0ba64071c22728b426e
- MD5 e3d576dc83347c64d2317f84be98dfb8
- SHA1 bdf9970a895dcaa395791491690c0f7ab13a8daa
- SHA512 c14e5a3a47ce9276bfae21b68de9ed3754029b322b20b91d2b682873a57a63f0c8c52471377241c1ab7b35d2a71a2d0258772e3e518b0a581255b16f37e776ac
- SSDEEP 768:HyJ1hmgtI9OwGtxwn8Brl+mPrmkkKJFC5cUV5dG0kG:SThmLk9xwn8NLmkh6qUDdGRG
- TLSH T1A4239211D877A9B3D9DE187966CA370EEB3ADC13A6CCE9D335F019D259222E19033631
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
Malware Config
Signatures
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 120 wrote to memory of 5800 120 rundll32.exe 90
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NXGCSS\NXGCSS.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:120 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NXGCSS\NXGCSS.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:5800
-