Analysis
- max time kernel
149s - max time network
96s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
22/05/2026, 12:17
Behavioral task
behavioral1
Sample
tmpozfiif5t.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpozfiif5t.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target tmpozfiif5t.exe
- Size 34KB
- Sample260522-pf7kasds6v
- SHA256 b97c1992b1a0dbbc8cb79dffb905624bd8d9063d35a00a991d7a7f0f97b46eb2
- MD5 449922afcb0756fa3897cbc268c3a8a0
- SHA1 7fac321ca3f96952c3ec6e6a50cce0f06cb63ae4
- SHA512 81f69cd7e3bdc75156efa19bf4906baa103b260e5da0559cd3efdb26205612dd976ea62d81daed8d13256c74bafe543ed9c83e10619a3d8ecef9fa55c1173f74
- SSDEEP 768:Mp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Ji:MpYoX58z1uirL98xMWnT0OQ9Ji
- TLSH T16AF2E1923B59E122E0E7DC3319B5682B9632C8659E5E4F7B1AC8A5299C703907C43B92
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4344 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1679180529-4058988202-686829476-1000\Software\Microsoft\Windows\CurrentVersion\Run\5E212EC5 = "C:\\Users\\Admin\\AppData\\Roaming\\5E212EC5\\bin.exe" winver.exe -
resource yara_rule behavioral3/memory/1680-0-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral3/memory/4344-21-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral3/files/0x001900000002b4a8-20.dat upx - Program crash 1 IoCs
pid pid_target Process procid_target 4348 3904 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 tmpozfiif5t.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 3904 winver.exe 3904 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3148 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE Token: SeShutdownPrivilege 3148 Explorer.EXE Token: SeCreatePagefilePrivilege 3148 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3904 winver.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1680 wrote to memory of 3904 1680 tmpozfiif5t.exe 82 PID 3904 wrote to memory of 3148 3904 winver.exe 54 PID 3148 wrote to memory of 1232 3148 Explorer.EXE PID 3148 wrote to memory of 1232 3148 Explorer.EXE PID 1232 wrote to memory of 4344 1232 Process not Found 84 PID 1232 wrote to memory of 4344 1232 Process not Found 84 PID 3904 wrote to memory of 2076 3904 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2076
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3148 -
C:\Users\Admin\AppData\Local\Temp\tmpozfiif5t.exe"C:\Users\Admin\AppData\Local\Temp\tmpozfiif5t.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680 -
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:3904 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 3844⤵
- Program crash
PID:4348
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-
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C:\Users\Admin\AppData\Roaming\5E212EC5\bin.exeC:\Users\Admin\AppData\Roaming\5E212EC5\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4344
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3904 -ip 39041⤵PID:2120
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\5E212EC5\bin.exe
- Size 34KB
- SHA256 463a071dc70bb512766b87b6db1c8e85c3520462bce85b010c3fdd8722316188
- MD5 42d726db34355b2a06512f6d808bb527
- SHA1 a11b5b7f8227ddd9e613c73b393e42ce8afa17fb
- SHA512 3f4eff642a80394d71a6cf2a5efb4de49cfffff5231cfee77195404fe5f37c2199cc3aa36a6b7624c953120b7fd77b34c37fafb4d4bdd35916828acd42893237
- SSDEEP 768:kp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9Ji:kpYoX58z1uirL98xMWnT0OQ9Ji
- TLSH T163F2E1923B59E122E0E7DC3319B5682B9631C8659F5E4F7B1AC8A5299C703907C43B92
- MD5 SHA1 SHA512 SSDEEP TLSH