Analysis
- max time kernel
3s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
07/01/2024, 19:38
General
- Target 496bbe032a73902d776751dacc128876.exe
- Size 10.9MB
- Sample240107-ycff3sdfc7
- SHA256 2beb801d312dc631c95a1b7dcd4b698d5be0c618097941c42ff70536e3fae87c
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).
Processes
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C:\Users\Admin\AppData\Local\Temp\496bbe032a73902d776751dacc128876.exe"C:\Users\Admin\AppData\Local\Temp\496bbe032a73902d776751dacc128876.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bisnbhzu\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pbnvvgvd.exe" C:\Windows\SysWOW64\bisnbhzu\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create bisnbhzu binPath= "C:\Windows\SysWOW64\bisnbhzu\pbnvvgvd.exe /d\"C:\Users\Admin\AppData\Local\Temp\496bbe032a73902d776751dacc128876.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 bisnbhzu "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start bisnbhzu2⤵
- 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\bisnbhzu\pbnvvgvd.exeC:\Windows\SysWOW64\bisnbhzu\pbnvvgvd.exe /d"C:\Users\Admin\AppData\Local\Temp\496bbe032a73902d776751dacc128876.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/1468-10-0x0000000001FD0000-0x00000000020D0000-memory.dmp
memory/1468-15-0x0000000000400000-0x0000000001D75000-memory.dmp
memory/1468-13-0x0000000000400000-0x0000000001D75000-memory.dmp
memory/2824-2-0x0000000001D90000-0x0000000001DA3000-memory.dmp
memory/2824-1-0x0000000001DB0000-0x0000000001EB0000-memory.dmp
memory/2824-4-0x0000000000400000-0x0000000001D75000-memory.dmp
memory/2824-8-0x0000000000400000-0x0000000001D75000-memory.dmp
memory/2824-9-0x0000000001D90000-0x0000000001DA3000-memory.dmp
memory/4784-11-0x0000000000AE0000-0x0000000000AF5000-memory.dmp
memory/4784-16-0x0000000000AE0000-0x0000000000AF5000-memory.dmp
memory/4784-17-0x0000000000AE0000-0x0000000000AF5000-memory.dmp
memory/4784-18-0x0000000000AE0000-0x0000000000AF5000-memory.dmp