Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/06/2026, 01:01
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tmp3m4g2sh1.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmp3m4g2sh1.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral3
Sample
tmp3m4g2sh1.exe
Resource
win11-20260513-en
11 signatures
150 seconds
General
- Target tmp3m4g2sh1.exe
- Size 89KB
- Sample260602-bdbg7abx2m
- SHA256 1d3d06774171e2bae0462ae2ce233c577826e001eb84777647fe938f8b90768e
- MD5 e65ae6c86d3fddb8533a02566a40960b
- SHA1 a85c13a499f1708038d625ac13ad1c9b68b9ffa0
- SHA512 7cfb2ad32cde776bd20a59ece082ca8ff5e9fbd7206bb01e3549472403f3767e46ffa514bb49545f32d590b1e5a58c94d773c5b8e8aca178ee081e82ce6431d3
- SSDEEP 1536:qz44CpRkr9DXhH/2m//56RrufqjhzrmKIFAV0ED:qzvokZRfN/yFj1qrFAHD
- TLSH T169931871E215E487C917D8F2991ACD3168627D7D8AA0851E32E97F6D68B3BE30049F0F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3416 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2654269261-3199571979-4291878722-1000\Software\Microsoft\Windows\CurrentVersion\Run\F37E6FD3 = "C:\\Users\\Admin\\AppData\\Roaming\\F37E6FD3\\bin.exe" winver.exe - Program crash 1 IoCs
pid pid_target Process procid_target 4712 764 WerFault.exe 85 - System Location Discovery: System Language Discovery 1 TTPs 3 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 tmp3m4g2sh1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bin.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 764 winver.exe 764 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3188 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE Token: SeShutdownPrivilege 3188 Explorer.EXE Token: SeCreatePagefilePrivilege 3188 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 764 winver.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3396 wrote to memory of 764 3396 tmp3m4g2sh1.exe 85 PID 764 wrote to memory of 3188 764 winver.exe 54 PID 3188 wrote to memory of 1072 3188 Explorer.EXE PID 3188 wrote to memory of 1072 3188 Explorer.EXE PID 1072 wrote to memory of 3416 1072 Process not Found 88 PID 1072 wrote to memory of 3416 1072 Process not Found 88 PID 764 wrote to memory of 2268 764 winver.exe 51 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2268
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3188 -
C:\Users\Admin\AppData\Local\Temp\tmp3m4g2sh1.exe"C:\Users\Admin\AppData\Local\Temp\tmp3m4g2sh1.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3396 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:764 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 3804⤵
- Program crash
PID:4712
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C:\Users\Admin\AppData\Roaming\F37E6FD3\bin.exeC:\Users\Admin\AppData\Roaming\F37E6FD3\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3416
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 764 -ip 7641⤵PID:1508
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\F37E6FD3\bin.exe
- Size 89KB
- SHA256 f4303dbca1c31a7d6b982762b622f8663c9dc902b8944371c235cf924b068e86
- MD5 fa165fe6ecae0cf6ddaa186e7ff777b4
- SHA1 e2df4b41f4962c8d23b5dd4cd93c4cfd128e55e2
- SHA512 46c3f4caabe6a7a03bf2ce5759f36aaac17ddef938619f362e6b8752490713b771d00fdb63b59cef223875002e6d29883b0074ed9381cdbf489537589294a40a
- SSDEEP 1536:xz44CpRkr9DXhH/2m//56RrufqjhzrmKIFAV0ED:xzvokZRfN/yFj1qrFAHD
- TLSH T1E2931871E215E487C917D8F2991ACD3168627D7D8AA0851E32E97F6D68B3BE30049F0F
- MD5 SHA1 SHA512 SSDEEP TLSH