Analysis
- max time kernel
149s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/05/2026, 09:45
Behavioral task
behavioral1
Sample
tmpfqzs9e0p.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpfqzs9e0p.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target tmpfqzs9e0p.exe
- Size 110KB
- Sample260529-lrerwagy2w
- SHA256 fe7b8cdc39247a1366c2f04d91a4ac93385177879509c02ac3761e5f637e85a0
- MD5 e18be89a930b6126348f95012530fd10
- SHA1 61974400e8ae35973a58bc9f14e50377a569e8fa
- SHA512 93cacbf2a69717da47e136a1e8300ca8f204be2c7864cc35d86e41e4c2bdfade7b60330eab9a875d9f51bb052cac5324d6729e8b654cba10249523d91645f297
- SSDEEP 1536:KiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:KiyvRmDLs/ZrwWJjAqGcRJ2hg
- TLSH T189B34B62F204E88BE817D8F69919CD3168A33DBD4890855E32D9BF6D58B3AD30459F0F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2376 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\23F8A3A1 = "C:\\Users\\Admin\\AppData\\Roaming\\23F8A3A1\\bin.exe" winver.exe -
resource yara_rule behavioral2/memory/4364-0-0x0000000000400000-0x000000000041E000-memory.dmp upx behavioral2/memory/2376-26-0x0000000000400000-0x000000000041E000-memory.dmp upx behavioral2/files/0x0007000000024526-25.dat upx - Program crash 1 IoCs
pid pid_target Process procid_target 2356 2484 WerFault.exe 90 - 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 bin.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpfqzs9e0p.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2484 winver.exe 2484 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3276 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 32 IoCs
description pid Process Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE Token: SeShutdownPrivilege 3276 Explorer.EXE Token: SeCreatePagefilePrivilege 3276 Explorer.EXE - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 2484 winver.exe 3276 Explorer.EXE 3276 Explorer.EXE - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3276 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4364 wrote to memory of 2484 4364 tmpfqzs9e0p.exe 90 PID 2484 wrote to memory of 3276 2484 winver.exe 56 PID 3276 wrote to memory of 1652 3276 Explorer.EXE PID 3276 wrote to memory of 1652 3276 Explorer.EXE PID 2484 wrote to memory of 2940 2484 winver.exe 51 PID 1652 wrote to memory of 2376 1652 Process not Found 103 PID 1652 wrote to memory of 2376 1652 Process not Found 103
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 UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3276 -
C:\Users\Admin\AppData\Local\Temp\tmpfqzs9e0p.exe"C:\Users\Admin\AppData\Local\Temp\tmpfqzs9e0p.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4364 -
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:2484 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 3524⤵
- Program crash
PID:2356
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2484 -ip 24841⤵PID:1972
-
C:\Users\Admin\AppData\Roaming\23F8A3A1\bin.exeC:\Users\Admin\AppData\Roaming\23F8A3A1\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2376
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\23F8A3A1\bin.exe
- Size 110KB
- SHA256 9483ea633da8bdeaea8ed01fae85eefdcbc85c30139814035616da36a3f8832f
- MD5 fac1364f412bf94c3d01b771cad612f9
- SHA1 435f2c13bd4ececf120777f606d22a7d3ac12e7f
- SHA512 f99be935b900a396773378f82064d13378a86e7b7acfd16662cb4ce017ad148f5b7f2c69ef5e427520d182aec09cac459669aa2bb8336ce6a1392e046732a02a
- SSDEEP 1536:ViLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:ViyvRmDLs/ZrwWJjAqGcRJ2hg
- TLSH T1A7B34B62F204E88BE817D8F69919CD3168A33DBD4890455E32D9BF6D58B3AD30459F0F
- MD5 SHA1 SHA512 SSDEEP TLSH