Analysis
- max time kernel
1s - max time network
74s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
01/01/2024, 10:15
General
- Target 3c9700ae96d0130e8799aebf0de2673f.exe
- Size 11.9MB
- Sample240101-l9765sbdc3
- SHA256 6b22216ddffd7e44376afee0c9055a416b2e1cb310806981b5da60b7b95ecd3f
Malware Config
Extracted
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tofsee
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defeatwax.ru
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refabyd.info
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).
- Program crash 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\3c9700ae96d0130e8799aebf0de2673f.exe"C:\Users\Admin\AppData\Local\Temp\3c9700ae96d0130e8799aebf0de2673f.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ehaojvcy\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\umvdanzt.exe" C:\Windows\SysWOW64\ehaojvcy\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create ehaojvcy binPath= "C:\Windows\SysWOW64\ehaojvcy\umvdanzt.exe /d\"C:\Users\Admin\AppData\Local\Temp\3c9700ae96d0130e8799aebf0de2673f.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 ehaojvcy "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start ehaojvcy2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 11762⤵
- Program crash
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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\ehaojvcy\umvdanzt.exeC:\Windows\SysWOW64\ehaojvcy\umvdanzt.exe /d"C:\Users\Admin\AppData\Local\Temp\3c9700ae96d0130e8799aebf0de2673f.exe"1⤵
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 5122⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2736 -ip 27361⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3168 -ip 31681⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/2736-3-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2736-1-0x00000000005D0000-0x00000000006D0000-memory.dmp
memory/2736-8-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2736-9-0x00000000021B0000-0x00000000021C3000-memory.dmp
memory/2736-2-0x00000000021B0000-0x00000000021C3000-memory.dmp
memory/3168-10-0x0000000000620000-0x0000000000720000-memory.dmp
memory/3168-12-0x0000000000400000-0x0000000000468000-memory.dmp
memory/3168-18-0x0000000000400000-0x0000000000468000-memory.dmp
memory/3584-16-0x0000000000130000-0x0000000000145000-memory.dmp
memory/3584-15-0x0000000000130000-0x0000000000145000-memory.dmp
memory/3584-11-0x0000000000130000-0x0000000000145000-memory.dmp
memory/3584-17-0x0000000000130000-0x0000000000145000-memory.dmp
memory/3584-19-0x0000000000130000-0x0000000000145000-memory.dmp