Analysis
- max time kernel
149s - max time network
151s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
25/05/2026, 22:41
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tmp3o8k22ad.exe
Resource
win10ltsc2021-20260513-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmp3o8k22ad.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral3
Sample
tmp3o8k22ad.exe
Resource
win11-20260513-en
11 signatures
150 seconds
General
- Target tmp3o8k22ad.exe
- Size 88KB
- Sample260525-2mcdysbt3x
- SHA256 b9295f41ab00fd6467658d0b7e1e4813df06bcb4d0ad66711077a6cf75c78ce0
- MD5 acdf07bf052773161227c24cbd13e8f0
- SHA1 3c38c5f4b4ad0b9e590357e968bef34defe3879e
- SHA512 db0b75a1877985e7b251308fdb33d9c71723e1696979d0bf9ff4537019ae6212a9d0b4364cd2ad789852f9434cf398a35448a6c9e160fc3cfedd247daeae145c
- SSDEEP 1536:9z44CpRkr9DXhHf3aOd/56RrkQqjh+rmKVsN:9zvokZR/KM/ysjwqWsN
- TLSH T1D3932971F215E497D917D8F2991ECD3164623DBD98A0450E32E97F6964B3BE2008AF0F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4876 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2058276091-3280583803-376660292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2B56ED08 = "C:\\Users\\Admin\\AppData\\Roaming\\2B56ED08\\bin.exe" winver.exe - Program crash 1 IoCs
pid pid_target Process procid_target 2180 2904 WerFault.exe 83 - 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 bin.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmp3o8k22ad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2904 winver.exe 2904 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3328 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeShutdownPrivilege 3328 Explorer.EXE Token: SeCreatePagefilePrivilege 3328 Explorer.EXE Token: SeShutdownPrivilege 3328 Explorer.EXE Token: SeCreatePagefilePrivilege 3328 Explorer.EXE Token: SeShutdownPrivilege 3328 Explorer.EXE Token: SeCreatePagefilePrivilege 3328 Explorer.EXE Token: SeShutdownPrivilege 3328 Explorer.EXE Token: SeCreatePagefilePrivilege 3328 Explorer.EXE Token: SeShutdownPrivilege 3328 Explorer.EXE Token: SeCreatePagefilePrivilege 3328 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2904 winver.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 548 wrote to memory of 2904 548 tmp3o8k22ad.exe 83 PID 2904 wrote to memory of 3328 2904 winver.exe 56 PID 3328 wrote to memory of 3508 3328 Explorer.EXE PID 3328 wrote to memory of 3508 3328 Explorer.EXE PID 3508 wrote to memory of 4876 3508 Process not Found 89 PID 3508 wrote to memory of 4876 3508 Process not Found 89 PID 2904 wrote to memory of 388 2904 winver.exe 52
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:388
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Users\Admin\AppData\Local\Temp\tmp3o8k22ad.exe"C:\Users\Admin\AppData\Local\Temp\tmp3o8k22ad.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548 -
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:2904 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 3884⤵
- Program crash
PID:2180
-
-
-
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C:\Users\Admin\AppData\Roaming\2B56ED08\bin.exeC:\Users\Admin\AppData\Roaming\2B56ED08\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4876
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2904 -ip 29041⤵PID:4800
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\2B56ED08\bin.exe
- Size 88KB
- SHA256 07769887f03df7b98bd6402e261252669ae03a8e4deae0dccb1363706c3a6b6b
- MD5 128643c4c4a5585fc3e5210847a99cf3
- SHA1 2e86a810cf6cd52ab2709f81f4892b35395fecea
- SHA512 dcb915679a38850a0d9153ffd4691cda620e635db2a5caab5b44354d67aec5e3a95f6a9588458cc9d382ae0c40523c3c84a684d10050435a47a7559ad191b80e
- SSDEEP 1536:9z44CpRkr9DXhHf3aOd/56RrkQqjh+rmKVsN:9zvokZR/KM/ysjwqWsN
- TLSH T1E4932971F215E497D917D8F2991ECD3164623DBD98A0450E32E97F6964B3BE2004AF0F
- MD5 SHA1 SHA512 SSDEEP TLSH