Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/05/2026, 11:44
Behavioral task
behavioral1
Sample
tmphb5kh421.exe
Resource
win10ltsc2021-20260513-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmphb5kh421.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
General
- Target tmphb5kh421.exe
- Size 113KB
- Sample260522-nv62mscv41
- SHA256 2460fbe1a7595958285a864733ff82b6d3cbb50a0c538cc79beaafc0f10b52c8
- MD5 520141102f57f8d5df76d7980b376f89
- SHA1 e9fade9a8a7cca44f445d4b5a13239fbf47eb2c2
- SHA512 060c501327303610eace2a27c7fcfb7643f8a3e4c9147d77c3ad3b1788498775093ff5a737712f24a9baf558616637111fa5cf2e4bb3fa1bc12a76a918a6daf2
- SSDEEP 1536:wiLOvRmmQegJfBbmAQ256/ZrwWhwqjhurmKFcbL86WV0E:wiyvRmDLs/ZrwWjjAqGcfzWH
- TLSH T1A1B34B62F204E89BE817D8F29919CD3164A37DBC88A0455E32D97F6D58B3AD30859F0F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3804 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FD51AC23 = "C:\\Users\\Admin\\AppData\\Roaming\\FD51AC23\\bin.exe" winver.exe -
resource yara_rule behavioral2/memory/4804-0-0x0000000000400000-0x000000000041E000-memory.dmp upx behavioral2/files/0x0007000000024350-19.dat upx behavioral2/memory/3804-21-0x0000000000400000-0x000000000041E000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 116 3992 WerFault.exe 89 - 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 tmphb5kh421.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3992 winver.exe 3992 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3280 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 28 IoCs
description pid Process Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE Token: SeShutdownPrivilege 3280 Explorer.EXE Token: SeCreatePagefilePrivilege 3280 Explorer.EXE - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3992 winver.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4804 wrote to memory of 3992 4804 tmphb5kh421.exe 89 PID 3992 wrote to memory of 3280 3992 winver.exe 56 PID 3280 wrote to memory of 2992 3280 Explorer.EXE PID 3280 wrote to memory of 2992 3280 Explorer.EXE PID 2992 wrote to memory of 3804 2992 Process not Found 92 PID 2992 wrote to memory of 3804 2992 Process not Found 92 PID 3992 wrote to memory of 2724 3992 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2724
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3280 -
C:\Users\Admin\AppData\Local\Temp\tmphb5kh421.exe"C:\Users\Admin\AppData\Local\Temp\tmphb5kh421.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804 -
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:3992 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 3524⤵
- Program crash
PID:116
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C:\Users\Admin\AppData\Roaming\FD51AC23\bin.exeC:\Users\Admin\AppData\Roaming\FD51AC23\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3804
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3992 -ip 39921⤵PID:3860
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\FD51AC23\bin.exe
- Size 113KB
- SHA256 a5850f268319f66cdeb3bd465af82257864f061e33be09b079585e18137aac44
- MD5 8ae7a2ac37510982532e33570d7e9a46
- SHA1 a99c2a4c384fc720286e7d36663e4ca9070449ba
- SHA512 930e989d2eb7ab9d26c965fd88483118952b1406c6263104d81b6ca96365a578aad3a03a0c1fcdfc70fc68dde4c6e0fe88e6ab73ae6d35abea3dc16215595c13
- SSDEEP 1536:IiLOvRmmQegJfBbmAQ256/ZrwWhwqjhurmKFcbL86WV0E:IiyvRmDLs/ZrwWjjAqGcfzWH
- TLSH T136B34B62F204E89BE817D8F29919CD3164A37DBC88A0455E32D97F6D58B3AD30859F0F
- MD5 SHA1 SHA512 SSDEEP TLSH