Analysis
- max time kernel
2s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
29/12/2023, 20:20
General
- Target 02e6e0fff56a1db82154a86353cfdc25.exe
- Size 12.6MB
- Sample231229-y4j9cabbdk
- SHA256 32475795e264d58fd9a01f5a1f14fd16e2f94d923cd719fca0617da62d8f9182
Malware Config
Extracted
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tofsee
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43.231.4.6
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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).
- Program crash 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\02e6e0fff56a1db82154a86353cfdc25.exe"C:\Users\Admin\AppData\Local\Temp\02e6e0fff56a1db82154a86353cfdc25.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kmgnsjff\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ycnfjqrx.exe" C:\Windows\SysWOW64\kmgnsjff\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create kmgnsjff binPath= "C:\Windows\SysWOW64\kmgnsjff\ycnfjqrx.exe /d\"C:\Users\Admin\AppData\Local\Temp\02e6e0fff56a1db82154a86353cfdc25.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 kmgnsjff "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start kmgnsjff2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 6522⤵
- Program crash
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
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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\kmgnsjff\ycnfjqrx.exeC:\Windows\SysWOW64\kmgnsjff\ycnfjqrx.exe /d"C:\Users\Admin\AppData\Local\Temp\02e6e0fff56a1db82154a86353cfdc25.exe"1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 5362⤵
- Program crash
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4596 -ip 45961⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3572 -ip 35721⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/656-18-0x0000000000A80000-0x0000000000A95000-memory.dmp
memory/656-7-0x0000000000A80000-0x0000000000A95000-memory.dmp
memory/656-10-0x0000000000A80000-0x0000000000A95000-memory.dmp
memory/656-11-0x0000000000A80000-0x0000000000A95000-memory.dmp
memory/3528-29-0x0000000000460000-0x0000000000475000-memory.dmp
memory/3528-30-0x0000000000460000-0x0000000000475000-memory.dmp
memory/3528-24-0x0000000000460000-0x0000000000475000-memory.dmp
memory/3572-21-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/3572-20-0x00000000009C0000-0x0000000000AC0000-memory.dmp
memory/3572-32-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/4596-2-0x0000000002500000-0x0000000002513000-memory.dmp
memory/4596-12-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/4596-13-0x0000000002500000-0x0000000002513000-memory.dmp
memory/4596-1-0x0000000000990000-0x0000000000A90000-memory.dmp
memory/4596-4-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/4952-27-0x00000000005C0000-0x00000000005D5000-memory.dmp
memory/4952-31-0x00000000005C0000-0x00000000005D5000-memory.dmp
memory/4952-22-0x00000000005C0000-0x00000000005D5000-memory.dmp
memory/4952-33-0x00000000005C0000-0x00000000005D5000-memory.dmp