Analysis
- max time kernel
149s - 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, 00:59
Behavioral task
behavioral1
Sample
tmpec3m0ebs.exe
Resource
win10ltsc2021-20260513-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpec3m0ebs.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
General
- Target tmpec3m0ebs.exe
- Size 45KB
- Sample260602-bcg9caas3y
- SHA256 dce4f7e52d3edd396d33e0c71b7743e3ff2e4631048d757bd3386e87d7f650cd
- MD5 d936826cb874a0858a692ce6b6879567
- SHA1 a643ddcbac410cf671eaa637e0a663d1c9c8c4a2
- SHA512 cfeffc749ab14bd8dc82e9a880dd6568d555f1910cfd34f9ccee62fae0f7b91bf55fcd45c3fbca088767e4ea2c0b02f269d627f7999edb9992b8aa2f9f651c93
- SSDEEP 768:3hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2v:RsWE9N5dFu53dsniQaB/xZ14n7zIF+qb
- TLSH T16D23F1DEEA177C6AF4B38E3D63030B354612AA3175AEE7571861D2DD2C31364CE41B2A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3452 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-226940941-599731907-2645636698-1000\Software\Microsoft\Windows\CurrentVersion\Run\1523065C = "C:\\Users\\Admin\\AppData\\Roaming\\1523065C\\bin.exe" winver.exe -
resource yara_rule behavioral3/memory/5332-0-0x0000000000400000-0x000000000041D000-memory.dmp upx behavioral3/files/0x002700000002b3eb-19.dat upx behavioral3/memory/3452-21-0x0000000000400000-0x000000000041D000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 2776 5436 WerFault.exe 81 - 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 tmpec3m0ebs.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 5436 winver.exe 5436 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3316 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE Token: SeShutdownPrivilege 3316 Explorer.EXE Token: SeCreatePagefilePrivilege 3316 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 5436 winver.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3316 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 5332 wrote to memory of 5436 5332 tmpec3m0ebs.exe 81 PID 5436 wrote to memory of 3316 5436 winver.exe 54 PID 3316 wrote to memory of 2956 3316 Explorer.EXE PID 3316 wrote to memory of 2956 3316 Explorer.EXE PID 2956 wrote to memory of 3452 2956 Process not Found 83 PID 2956 wrote to memory of 3452 2956 Process not Found 83 PID 5436 wrote to memory of 808 5436 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:808
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Users\Admin\AppData\Local\Temp\tmpec3m0ebs.exe"C:\Users\Admin\AppData\Local\Temp\tmpec3m0ebs.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5332 -
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:5436 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5436 -s 3804⤵
- Program crash
PID:2776
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C:\Users\Admin\AppData\Roaming\1523065C\bin.exeC:\Users\Admin\AppData\Roaming\1523065C\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3452
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5436 -ip 54361⤵PID:4288
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\1523065C\bin.exe
- Size 45KB
- SHA256 416dda0593100ae6a42155e5179fa835f88184a5035258173057bd2743b4bb93
- MD5 b8572ae2d7ac1192f64bf23bfb0db866
- SHA1 6d4efc6fc4252a949410ee2e38e98d7cf16b9f62
- SHA512 5b2350d8e3a712ee0bddfa07d41fe24e40b3046d2abf52cab252aba7787ee511aa7f303a5910e7851abdce799dea217a45c8ebb92e5a6fbde299dedb8b7305dc
- SSDEEP 768:3hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2v:RsWE9N5dFu53dsniQaB/xZ14n7zIF+qb
- TLSH T17023F1DEEA177C6AF4B38E3D63030B354612AA3175AEE7571861D2DD2C31364CE41B2A
- MD5 SHA1 SHA512 SSDEEP TLSH