Analysis
- max time kernel
3s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
31/12/2023, 19:37
General
- Target 3ae0fd35cf59b90af63878b88960721b.exe
- Size 10.3MB
- Sample231231-yb7tyafdh3
- SHA256 793b6f38a14f3e0c2b94286ee72b25da05688762b380e9669cf7f112651ee29f
Malware Config
Extracted
-
tofsee
-
43.231.4.6
-
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
-
C:\Users\Admin\AppData\Local\Temp\3ae0fd35cf59b90af63878b88960721b.exe"C:\Users\Admin\AppData\Local\Temp\3ae0fd35cf59b90af63878b88960721b.exe"1⤵
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sftwlywk\2⤵
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rnfdluxp.exe" C:\Windows\SysWOW64\sftwlywk\2⤵
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create sftwlywk binPath= "C:\Windows\SysWOW64\sftwlywk\rnfdluxp.exe /d\"C:\Users\Admin\AppData\Local\Temp\3ae0fd35cf59b90af63878b88960721b.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description sftwlywk "wifi internet conection"2⤵
- Launches sc.exe
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start sftwlywk2⤵
- Launches sc.exe
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 12162⤵
- Program crash
-
-
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
-
-
C:\Windows\SysWOW64\sftwlywk\rnfdluxp.exeC:\Windows\SysWOW64\sftwlywk\rnfdluxp.exe /d"C:\Users\Admin\AppData\Local\Temp\3ae0fd35cf59b90af63878b88960721b.exe"1⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 5122⤵
- Program crash
-
-
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2432 -ip 24321⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 5064 -ip 50641⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2432-2-0x0000000002650000-0x0000000002663000-memory.dmp
memory/2432-4-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/2432-1-0x0000000000A50000-0x0000000000B50000-memory.dmp
memory/2432-8-0x0000000002650000-0x0000000002663000-memory.dmp
memory/2432-7-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/3564-16-0x00000000008C0000-0x00000000008D5000-memory.dmp
memory/3564-18-0x00000000008C0000-0x00000000008D5000-memory.dmp
memory/3564-15-0x00000000008C0000-0x00000000008D5000-memory.dmp
memory/3564-11-0x00000000008C0000-0x00000000008D5000-memory.dmp
memory/3564-19-0x00000000008C0000-0x00000000008D5000-memory.dmp
memory/5064-12-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/5064-17-0x0000000000400000-0x00000000008EA000-memory.dmp
memory/5064-10-0x0000000000980000-0x0000000000A80000-memory.dmp