Analysis
- max time kernel
3s - max time network
110s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
11/01/2024, 04:16
General
- Target 5282406ba6bf9867d8dbbda8ad03959b.exe
- Size 14.0MB
- Sample240111-evz4naedel
- SHA256 1efcd5dfa1538d3bc2b0cd469c63e314789cf7a1d73494ec15b49de87ebf665b
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\5282406ba6bf9867d8dbbda8ad03959b.exe"C:\Users\Admin\AppData\Local\Temp\5282406ba6bf9867d8dbbda8ad03959b.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xadxdnyu\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dqpuepvz.exe" C:\Windows\SysWOW64\xadxdnyu\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create xadxdnyu binPath= "C:\Windows\SysWOW64\xadxdnyu\dqpuepvz.exe /d\"C:\Users\Admin\AppData\Local\Temp\5282406ba6bf9867d8dbbda8ad03959b.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 xadxdnyu "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start xadxdnyu2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3196 -s 12562⤵
- 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\xadxdnyu\dqpuepvz.exeC:\Windows\SysWOW64\xadxdnyu\dqpuepvz.exe /d"C:\Users\Admin\AppData\Local\Temp\5282406ba6bf9867d8dbbda8ad03959b.exe"1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 756 -s 5162⤵
- Program crash
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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 460 -p 3196 -ip 31961⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 756 -ip 7561⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/756-17-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/756-10-0x0000000000C90000-0x0000000000D90000-memory.dmp
memory/756-12-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/3196-4-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/3196-1-0x0000000000B10000-0x0000000000C10000-memory.dmp
memory/3196-7-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/3196-8-0x0000000000A90000-0x0000000000AA3000-memory.dmp
memory/3196-2-0x0000000000A90000-0x0000000000AA3000-memory.dmp
memory/4620-16-0x0000000000DD0000-0x0000000000DE5000-memory.dmp
memory/4620-15-0x0000000000DD0000-0x0000000000DE5000-memory.dmp
memory/4620-18-0x0000000000DD0000-0x0000000000DE5000-memory.dmp
memory/4620-11-0x0000000000DD0000-0x0000000000DE5000-memory.dmp
memory/4620-19-0x0000000000DD0000-0x0000000000DE5000-memory.dmp