Analysis
- max time kernel
149s - max time network
150s - 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, 01:33
Behavioral task
behavioral1
Sample
tmpbi0q4rev.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpbi0q4rev.exe
Resource
win10v2004-20260513-en
13 signatures
150 seconds
General
- Target tmpbi0q4rev.exe
- Size 89KB
- Sample260602-bysbfab19n
- SHA256 2ee2c853a605622d93e3011f500235eefe6ff16b8bf2ec84c1e1b362ac0eafdd
- MD5 e4908dcdca8b9f4a39dba14c876cec67
- SHA1 0e80e68da235d317d7d197f8ec8b831e0e78c9c2
- SHA512 61b0d38d6214f59b7e69fddfe9c5ca6e7b11fc8e4cd75e2970752e77045402099180821cc9f5b94ad1df7fbe76c9a31756ae39d868dfd0805fb6d706bab557c6
- SSDEEP 1536:Dr+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:X+4MJIkLZJNAQ9Jo9e
- TLSH T14D932822B3A5901FF0B3AEB92E3485150D27B9745C34D69A76C84E4E5A73DC39D21B23
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3540 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2043432456-1617298091-2772621413-1000\Software\Microsoft\Windows\CurrentVersion\Run\0984F999 = "C:\\Users\\Admin\\AppData\\Roaming\\0984F999\\bin.exe" winver.exe -
resource yara_rule behavioral3/memory/5036-0-0x0000000000400000-0x0000000000418000-memory.dmp upx behavioral3/files/0x001900000002b48e-18.dat upx behavioral3/memory/3540-20-0x0000000000400000-0x0000000000418000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 3444 4860 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 tmpbi0q4rev.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 4860 winver.exe 4860 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3192 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE Token: SeShutdownPrivilege 3192 Explorer.EXE Token: SeCreatePagefilePrivilege 3192 Explorer.EXE - Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 4860 winver.exe 3192 Explorer.EXE 3192 Explorer.EXE 3192 Explorer.EXE - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 3192 Explorer.EXE 3192 Explorer.EXE 3192 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 5036 wrote to memory of 4860 5036 tmpbi0q4rev.exe 81 PID 4860 wrote to memory of 3192 4860 winver.exe 54 PID 3192 wrote to memory of 2784 3192 Explorer.EXE PID 3192 wrote to memory of 2784 3192 Explorer.EXE PID 2784 wrote to memory of 3540 2784 Process not Found 83 PID 2784 wrote to memory of 3540 2784 Process not Found 83 PID 4860 wrote to memory of 2388 4860 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2388
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3192 -
C:\Users\Admin\AppData\Local\Temp\tmpbi0q4rev.exe"C:\Users\Admin\AppData\Local\Temp\tmpbi0q4rev.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036 -
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:4860 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 3804⤵
- Program crash
PID:3444
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-
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C:\Users\Admin\AppData\Roaming\0984F999\bin.exeC:\Users\Admin\AppData\Roaming\0984F999\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3540
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4860 -ip 48601⤵PID:1772
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\0984F999\bin.exe
- Size 89KB
- SHA256 74dc1d500c30dfeb7d0fbeb78f7d7b9944f67257ec4ac2721c29a78ee94df670
- MD5 cd03d8c0686b2941f12971d543666a28
- SHA1 e6f77b765907a06b9c654b1114562c170dd200d8
- SHA512 4c6f96d2bc627334cdb40664ff7e2da0b5fbd436184612577dd5bf195317b63e61eb89db2ddd73aa4d1c1ac186110d01f6a73a20a9a4df3bec47088092c4d346
- SSDEEP 1536:Yr+mFM2HXKZgixhIksu+XM5/HtAQ9Jox7e:K+4MJIkLZJNAQ9Jo9e
- TLSH T103932822B3A5901FF0B3BEB92E3485150D27B9745C34D69A76C84E4E4A73DC39D21B23
- MD5 SHA1 SHA512 SSDEEP TLSH