Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
16/05/2026, 01:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe
Resource
win11-20260513-en
windows11-21h2-x64
5 signatures
150 seconds
General
- Target 2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe
- Size 565KB
- Sample260516-bvb52scz2k
- SHA256 84434ea054a130f77f1d3c9b3c14d341076c2f105474c1b3dce4dfd097743244
- MD5 9d91686708b81a4cb60af869e62a3e4e
- SHA1 49358e15fce7b5bb20a41bc0a938d865d0900b20
- SHA512 dff95007e4ecbc0066a3bf434883e7c292cba8444562ea14b26422b7be4c1fec471f15b6ff511115c7932e808cb21161ad7e5810cc0fb15a35d1c345719ed587
- SSDEEP 12288:fg7EvczlF6ohw9ZcR2zEEUQQS4Da1DaOvFMPKT06wQ:47EkzP6wwTcR2zlXQSSa9is
- TLSH T117C48D11B543A1B3D42661F34169E63B2A35BD360F298AE3E7C70E2569F3EC09633653
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 4 IoCs
pid Process 4272 zdo3z9ztpufocnceysv.exe 1376 ewfycjp.exe 2956 nivjfmbmjp.exe 3280 ewfycjp.exe - Drops file in Windows directory 5 IoCs
description ioc Process File created C:\Windows\biebchcvaa\yrtpsvtiqo zdo3z9ztpufocnceysv.exe File created C:\Windows\biebchcvaa\yrtpsvtiqo ewfycjp.exe File created C:\Windows\biebchcvaa\yrtpsvtiqo nivjfmbmjp.exe File created C:\Windows\biebchcvaa\yrtpsvtiqo ewfycjp.exe File created C:\Windows\biebchcvaa\yrtpsvtiqo 2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe - 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 zdo3z9ztpufocnceysv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ewfycjp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1376 ewfycjp.exe 1376 ewfycjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe 2956 nivjfmbmjp.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1132 wrote to memory of 4272 1132 2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe 80 PID 1376 wrote to memory of 2956 1376 ewfycjp.exe 82 PID 4272 wrote to memory of 3280 4272 zdo3z9ztpufocnceysv.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-16_9d91686708b81a4cb60af869e62a3e4e_bkransomware_elex_maze_stealc.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1132 -
C:\biebchcvaa\zdo3z9ztpufocnceysv.exe"C:\biebchcvaa\zdo3z9ztpufocnceysv.exe"2⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4272 -
C:\biebchcvaa\ewfycjp.exe"C:\biebchcvaa\ewfycjp.exe"3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3280
-
-
-
C:\biebchcvaa\ewfycjp.exeC:\biebchcvaa\ewfycjp.exe1⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1376 -
C:\biebchcvaa\nivjfmbmjp.exebtktixvxhc6b "c:\biebchcvaa\ewfycjp.exe"2⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2956
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\biebchcvaa\yrtpsvtiqo
- Size 6B
- SHA256 ac7886927b6630695ab736f2b8e6d1bc510ae8a1322a67de040021509103efdb
- MD5 3ddba8d89fec79b5285cbf05cc7da40a
- SHA1 32e028651757addc7a27c0d02dc4e040f6337741
- SHA512 3f89ea729eaf1d4d04ebf5d6e4c5b97141bd1750b4492f57f2fea66a8dd2a545ccdd64a9468d0975b2a9e04d4dd17efc3c2ff2ce665ae6beb0e85a9f8707abd9
- MD5 SHA1 SHA512
- Path C:\biebchcvaa\zdo3z9ztpufocnceysv.exe
- Size 565KB
- SHA256 84434ea054a130f77f1d3c9b3c14d341076c2f105474c1b3dce4dfd097743244
- MD5 9d91686708b81a4cb60af869e62a3e4e
- SHA1 49358e15fce7b5bb20a41bc0a938d865d0900b20
- SHA512 dff95007e4ecbc0066a3bf434883e7c292cba8444562ea14b26422b7be4c1fec471f15b6ff511115c7932e808cb21161ad7e5810cc0fb15a35d1c345719ed587
- SSDEEP 12288:fg7EvczlF6ohw9ZcR2zEEUQQS4Da1DaOvFMPKT06wQ:47EkzP6wwTcR2zlXQSSa9is
- TLSH T117C48D11B543A1B3D42661F34169E63B2A35BD360F298AE3E7C70E2569F3EC09633653
- MD5 SHA1 SHA512 SSDEEP TLSH