Analysis
- max time kernel
3s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
07/01/2024, 19:21
General
- Target a2adb7966f88e6c0e15a8f5a04404fcf.exe
- Size 12.5MB
- Sample240107-x2r1qsccgr
- SHA256 3cb6cffbee2f03febb5c5ffc0e6b6f7d06e184ee69c6d873bc4619fe4ebfcce7
Malware Config
Extracted
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tofsee
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43.231.4.7
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lazystax.ru
Signatures
- Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
- Creates new service(s) 1 TTPs
- Modifies Windows Firewall 1 TTPs 1 IoCs
- Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
Processes
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C:\Users\Admin\AppData\Local\Temp\a2adb7966f88e6c0e15a8f5a04404fcf.exe"C:\Users\Admin\AppData\Local\Temp\a2adb7966f88e6c0e15a8f5a04404fcf.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ylbrdnvs\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gtfcvinx.exe" C:\Windows\SysWOW64\ylbrdnvs\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create ylbrdnvs binPath= "C:\Windows\SysWOW64\ylbrdnvs\gtfcvinx.exe /d\"C:\Users\Admin\AppData\Local\Temp\a2adb7966f88e6c0e15a8f5a04404fcf.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description ylbrdnvs "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start ylbrdnvs2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\ylbrdnvs\gtfcvinx.exeC:\Windows\SysWOW64\ylbrdnvs\gtfcvinx.exe /d"C:\Users\Admin\AppData\Local\Temp\a2adb7966f88e6c0e15a8f5a04404fcf.exe"1⤵
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2304-13-0x00000000036E0000-0x00000000037E0000-memory.dmp
memory/2304-19-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2304-17-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2676-8-0x00000000037A0000-0x00000000037B3000-memory.dmp
memory/2676-7-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2676-2-0x00000000037A0000-0x00000000037B3000-memory.dmp
memory/2676-4-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2676-1-0x0000000003800000-0x0000000003900000-memory.dmp
memory/3364-10-0x00000000001D0000-0x00000000001E5000-memory.dmp
memory/3364-15-0x00000000001D0000-0x00000000001E5000-memory.dmp
memory/3364-18-0x00000000001D0000-0x00000000001E5000-memory.dmp
memory/3364-16-0x00000000001D0000-0x00000000001E5000-memory.dmp
memory/3364-20-0x00000000001D0000-0x00000000001E5000-memory.dmp