Analysis
- max time kernel
149s - max time network
115s - 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, 00:58
Behavioral task
behavioral1
Sample
tmpgy_s663s.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpgy_s663s.exe
Resource
win10v2004-20260513-en
13 signatures
150 seconds
General
- Target tmpgy_s663s.exe
- Size 45KB
- Sample260602-bbxyeaas3s
- SHA256 2a5c94d88118b96264d617fc1df765e2e26d542e38e37442ea7a5e54d0762068
- MD5 988ad29616ea5fdb2b86335030b1b480
- SHA1 4f7950418c2c6bf0230065497e5b156a75f4f7e9
- SHA512 129347a180470148495e908bbc6adb13d0aabe21d5395197ad095c0647fac324ab5c84bb460985bd6c968a963db8eb0710f780d5bd7d4884d02ead677ae46617
- SSDEEP 768:hhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:bsWE9N5dFu53dsniQaB/xZ14n7zIF+qh
- TLSH T16923F1DEEA17BC6AF4B38E3D63030B354612AA3175AEE757186152DD2C31364CE41B2A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3352 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\246CFDAB = "C:\\Users\\Admin\\AppData\\Roaming\\246CFDAB\\bin.exe" winver.exe -
resource yara_rule behavioral3/memory/2452-0-0x0000000000400000-0x000000000041D000-memory.dmp upx behavioral3/memory/3352-20-0x0000000000400000-0x000000000041D000-memory.dmp upx behavioral3/files/0x001900000002b4aa-22.dat upx - Program crash 1 IoCs
pid pid_target Process procid_target 3844 4300 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 winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bin.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpgy_s663s.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4300 winver.exe 4300 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3176 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE Token: SeShutdownPrivilege 3176 Explorer.EXE Token: SeCreatePagefilePrivilege 3176 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4300 winver.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2452 wrote to memory of 4300 2452 tmpgy_s663s.exe 82 PID 4300 wrote to memory of 3176 4300 winver.exe 54 PID 3176 wrote to memory of 4888 3176 Explorer.EXE PID 3176 wrote to memory of 4888 3176 Explorer.EXE PID 4888 wrote to memory of 3352 4888 Process not Found 84 PID 4888 wrote to memory of 3352 4888 Process not Found 84 PID 4300 wrote to memory of 2248 4300 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2248
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3176 -
C:\Users\Admin\AppData\Local\Temp\tmpgy_s663s.exe"C:\Users\Admin\AppData\Local\Temp\tmpgy_s663s.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2452 -
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:4300 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 3804⤵
- Program crash
PID:3844
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C:\Users\Admin\AppData\Roaming\246CFDAB\bin.exeC:\Users\Admin\AppData\Roaming\246CFDAB\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3352
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4300 -ip 43001⤵PID:3948
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\246CFDAB\bin.exe
- Size 45KB
- SHA256 8a43e0a9cbc50735b92b065c7865ea6379dc2256b2e412698b17a027f9bd922c
- MD5 3ddabea540ad457c343699c333e027af
- SHA1 1b266d3feaa8a0f2096d1f38e40cf7cdd48b4c85
- SHA512 307512c3a9dfaa3df06ba8129b83c87e46ee52fc7086f9b2722559de6a0bcf333de57d32667002e4806cc006e5e987ef10d50a2bdb38d9c35a94473b05ceaa9b
- SSDEEP 768:YhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:ksWE9N5dFu53dsniQaB/xZ14n7zIF+qh
- TLSH T16823F1DEFA17BC6AF4B38E3D63030B354612AA3175AEE757186152DD2C31364CE41B2A
- MD5 SHA1 SHA512 SSDEEP TLSH