Analysis
- max time kernel
135s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
31/05/2024, 15:33
General
- Target 2024-05-31_2f6ca209791b6372caa6f40e7ebfaab9_bkransomware.exe
- Size 71KB
- Sample240531-szd9msdc87
- SHA256 c5dc091c98d61023ffd9809c0ec26c3a66c5f9ac446e75f5cdf7731ef281dbb5
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in Windows directory 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-31_2f6ca209791b6372caa6f40e7ebfaab9_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_2f6ca209791b6372caa6f40e7ebfaab9_bkransomware.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
excel.exe_Rules.xml
2rQvgELd65xBfrk.exe
CTS.exe