Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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 1052 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C735A214 = "C:\\Users\\Admin\\AppData\\Roaming\\C735A214\\bin.exe" winver.exe -
resource yara_rule behavioral2/memory/3220-0-0x0000000000400000-0x000000000041D000-memory.dmp upx behavioral2/files/0x0002000000022ccf-21.dat upx behavioral2/memory/1052-24-0x0000000000400000-0x000000000041D000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 3404 4668 WerFault.exe 84 - 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 4668 winver.exe 4668 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3296 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 34 IoCs
description pid Process Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE Token: SeShutdownPrivilege 3296 Explorer.EXE Token: SeCreatePagefilePrivilege 3296 Explorer.EXE - Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 4668 winver.exe 3296 Explorer.EXE 3296 Explorer.EXE 3296 Explorer.EXE 3296 Explorer.EXE 3296 Explorer.EXE - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 3296 Explorer.EXE 3296 Explorer.EXE 3296 Explorer.EXE - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3296 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3220 wrote to memory of 4668 3220 tmpgy_s663s.exe 84 PID 4668 wrote to memory of 3296 4668 winver.exe 56 PID 3296 wrote to memory of 2744 3296 Explorer.EXE PID 3296 wrote to memory of 2744 3296 Explorer.EXE PID 2744 wrote to memory of 1052 2744 Process not Found 90 PID 2744 wrote to memory of 1052 2744 Process not Found 90 PID 4668 wrote to memory of 2940 4668 winver.exe 50
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2940
-
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 UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3296 -
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:3220 -
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:4668 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 3524⤵
- Program crash
PID:3404
-
-
-
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C:\Users\Admin\AppData\Roaming\C735A214\bin.exeC:\Users\Admin\AppData\Roaming\C735A214\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1052
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4668 -ip 46681⤵PID:3280
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\C735A214\bin.exe
- Size 45KB
- SHA256 19de7bd1a536195035aff61ebcae339c1e6d64722b9f4cbe172be51eefa7b1b2
- MD5 28adddb994c42093bffc18071d44f09d
- SHA1 0b8c674f0b3e7b589d04e347344ab32117485f59
- SHA512 4a19018584c55b3c23251ff9a17a2575af2690711e25b6ed909496e0e36ef3ba29dc494084f79845a9b0f4fcf46babb127e3c9264f441b259498a2c8966a68f7
- SSDEEP 768:dhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2d:fsWE9N5dFu53dsniQaB/xZ14n7zIF+qh
- TLSH T18923F1DEFA177C6AF4B38E3D63030B354612AA3175AEE757186152DD2C31364CE41B2A
- MD5 SHA1 SHA512 SSDEEP TLSH