Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
25/01/2024, 17:16
General
- Target AD58B25945745C24819493A24B4EB139.exe
- Size 1.8MB
- Sample240125-vs5jcscchn
- SHA256 b1af59115af9cab0ec6b115ff5398c9979fd6e63b162d2c31b9004bc0bbde2f7
Malware Config
Signatures
- Kinsing
Kinsing is a loader written in Golang.
- njRAT/Bladabindi
Widely used RAT written in .NET.
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
- Drops autorun.inf file 1 TTPs 5 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
- Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 33 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\AD58B25945745C24819493A24B4EB139.exe"C:\Users\Admin\AppData\Local\Temp\AD58B25945745C24819493A24B4EB139.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\sakura_protected.exe"C:\Users\Admin\AppData\Local\Temp\sakura_protected.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\svchost.exe"C:\Windows\svchost.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\svchost.exe" "svchost.exe" ENABLE4⤵
- Modifies Windows Firewall
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
sakura_protected.exe
sakura_protected.exe
svchost.exe
svchost.exe
memory/4632-38-0x0000000074270000-0x0000000074821000-memory.dmp
memory/4632-52-0x0000000074270000-0x0000000074821000-memory.dmp
memory/4632-51-0x0000000000F80000-0x00000000012F6000-memory.dmp
memory/4632-39-0x0000000074270000-0x0000000074821000-memory.dmp
memory/4632-33-0x0000000000F80000-0x00000000012F6000-memory.dmp
memory/4712-22-0x0000000074270000-0x0000000074821000-memory.dmp
memory/4712-37-0x0000000000440000-0x00000000007B6000-memory.dmp
memory/4712-36-0x0000000074270000-0x0000000074821000-memory.dmp
memory/4712-24-0x0000000074270000-0x0000000074821000-memory.dmp
memory/4712-23-0x0000000002F40000-0x0000000002F50000-memory.dmp
memory/4712-21-0x0000000000440000-0x00000000007B6000-memory.dmp