Analysis
- max time kernel
149s - max time network
153s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
09/06/2026, 00:27
Behavioral task
behavioral1
Sample
tmpkjcihg9b.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpkjcihg9b.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target tmpkjcihg9b.exe
- Size 34KB
- Sample260609-ar8jeah19n
- SHA256 9c098e84af7e0cfe50a24ce699c95d69ac395ef908bcb52aa657dbcbfbd3e397
- MD5 eb3651e28021ee5ff712b340eacafd03
- SHA1 fe939cdfb03f06b8e5c441008a943c68ddfaf38d
- SHA512 7f129ba7472b8de988046e1c875d7ff371e788547648f666b771fdf50e38b121dedb61f6c015803ade2afe58c9d4ad4e28d4656a665c532c1fa8f667476862f1
- SSDEEP 768:1p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:1pYoX58z1uirL98xMWnT0OQ9J2
- TLSH T136F2E1923B59E122E0E7DC3319F5680B9731C9699F5E4F7F1AC825299C74390BC43B92
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5176 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4045429996-2364296335-1634900306-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2ED67BA2 = "C:\\Users\\Admin\\AppData\\Roaming\\2ED67BA2\\bin.exe" winver.exe -
resource yara_rule behavioral1/memory/4848-0-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/memory/5176-23-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral1/files/0x00070000000285cc-22.dat upx - Program crash 1 IoCs
pid pid_target Process procid_target 6056 3816 WerFault.exe 82 - 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 tmpkjcihg9b.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 3816 winver.exe 3816 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3356 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 26 IoCs
description pid Process Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE Token: SeShutdownPrivilege 3356 Explorer.EXE Token: SeCreatePagefilePrivilege 3356 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3816 winver.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4848 wrote to memory of 3816 4848 tmpkjcihg9b.exe 82 PID 3816 wrote to memory of 3356 3816 winver.exe 57 PID 3356 wrote to memory of 2472 3356 Explorer.EXE PID 3356 wrote to memory of 2472 3356 Explorer.EXE PID 2472 wrote to memory of 5176 2472 Process not Found 88 PID 2472 wrote to memory of 5176 2472 Process not Found 88 PID 3816 wrote to memory of 404 3816 winver.exe 52
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:404
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3356 -
C:\Users\Admin\AppData\Local\Temp\tmpkjcihg9b.exe"C:\Users\Admin\AppData\Local\Temp\tmpkjcihg9b.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4848 -
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:3816 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3816 -s 3884⤵
- Program crash
PID:6056
-
-
-
-
C:\Users\Admin\AppData\Roaming\2ED67BA2\bin.exeC:\Users\Admin\AppData\Roaming\2ED67BA2\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5176
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3816 -ip 38161⤵PID:724
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\2ED67BA2\bin.exe
- Size 34KB
- SHA256 4e81c85e6b296760f67557e59e972d0a4f773106275799d280a5fe8fd30adec6
- MD5 c151f8b6f1f304e2198be075b9da7708
- SHA1 248834d328beb237377678553ca7dc5c8ad50eb7
- SHA512 ae1542ae38eda3d39bb009fc00ac0b771f74be332a0761b0f5d525774ac67b67b091e9c6083e99a3afb5e562af10f05df6099ff4e4101fff5a9081baa6f068c9
- SSDEEP 768:dp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:dpYoX58z1uirL98xMWnT0OQ9J2
- TLSH T17CF2E1923B59E122E0E7DC3319F5680B9732C9659F5E4F7F1AC825299C74390BC43B92
- MD5 SHA1 SHA512 SSDEEP TLSH