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
09/06/2026, 00:27
Behavioral task
behavioral1
Sample
tmpywslp9gq.exe
Resource
win10ltsc2021-20260513-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpywslp9gq.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target tmpywslp9gq.exe
- Size 160KB
- Sample260609-arr7esh18q
- SHA256 18e7dbe94c4050fb80066abca7353755967a1d5d3f16ff510fc93dc35ac9a6cf
- MD5 ed4660502ccd985130c7cdd493dc1154
- SHA1 66643c3f0fc8db7548ad381b1ce274ea0a086122
- SHA512 db2349bf453d0b0323073799bcd35713f7fac0f025d8e28c04d820f20f1f95a1a1e7b3577e9bb9d156b4e9950ca2f5faaee7384b0400839353a0dc8a839706d9
- SSDEEP 1536:AEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:zY+4MiIkLZJNAQ9J6v
- TLSH T1F6F33922B3A5A41FF0B3AEBD2E3480154A27BD745C34D69A36C84E5E5A73DC39D21B13
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-101591186-421676486-4137282292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E90AB31D = "C:\\Users\\Admin\\AppData\\Roaming\\E90AB31D\\bin.exe" winver.exe -
resource yara_rule behavioral1/memory/4564-0-0x0000000000400000-0x0000000000428000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 2856 4236 WerFault.exe 83 - System Location Discovery: System Language Discovery 1 TTPs 2 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 winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpywslp9gq.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4236 winver.exe 4236 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3348 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 3348 Explorer.EXE Token: SeCreatePagefilePrivilege 3348 Explorer.EXE Token: SeShutdownPrivilege 3348 Explorer.EXE Token: SeCreatePagefilePrivilege 3348 Explorer.EXE Token: SeShutdownPrivilege 3348 Explorer.EXE Token: SeCreatePagefilePrivilege 3348 Explorer.EXE Token: SeShutdownPrivilege 3348 Explorer.EXE Token: SeCreatePagefilePrivilege 3348 Explorer.EXE Token: SeShutdownPrivilege 3348 Explorer.EXE Token: SeCreatePagefilePrivilege 3348 Explorer.EXE Token: SeShutdownPrivilege 3348 Explorer.EXE Token: SeCreatePagefilePrivilege 3348 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4236 winver.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4564 wrote to memory of 4236 4564 tmpywslp9gq.exe 83 PID 4236 wrote to memory of 3348 4236 winver.exe 56 PID 3348 wrote to memory of 4860 3348 Explorer.EXE PID 3348 wrote to memory of 4860 3348 Explorer.EXE PID 4236 wrote to memory of 2904 4236 winver.exe 52
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2904
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3348 -
C:\Users\Admin\AppData\Local\Temp\tmpywslp9gq.exe"C:\Users\Admin\AppData\Local\Temp\tmpywslp9gq.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564 -
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:4236 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 3884⤵
- Program crash
PID:2856
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4236 -ip 42361⤵PID:3680