Analysis
- max time kernel
3s - max time network
113s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
07/01/2024, 19:38
General
- Target abaf7e2ac8aedf2229f1062d84a4796b.exe
- Size 10.4MB
- Sample240107-ychlfacgbl
- SHA256 b438d5185a63d31957c98eb93d9c1f5ca1b90650a248da0bc24fc5550a03eb42
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\abaf7e2ac8aedf2229f1062d84a4796b.exe"C:\Users\Admin\AppData\Local\Temp\abaf7e2ac8aedf2229f1062d84a4796b.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\twhxdjfp\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xrtwpoo.exe" C:\Windows\SysWOW64\twhxdjfp\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create twhxdjfp binPath= "C:\Windows\SysWOW64\twhxdjfp\xrtwpoo.exe /d\"C:\Users\Admin\AppData\Local\Temp\abaf7e2ac8aedf2229f1062d84a4796b.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 twhxdjfp "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start twhxdjfp2⤵
- 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\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 12162⤵
- Program crash
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C:\Windows\SysWOW64\twhxdjfp\xrtwpoo.exeC:\Windows\SysWOW64\twhxdjfp\xrtwpoo.exe /d"C:\Users\Admin\AppData\Local\Temp\abaf7e2ac8aedf2229f1062d84a4796b.exe"1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3228 -s 5362⤵
- 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 448 -p 1484 -ip 14841⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3228 -ip 32281⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
xrtwpoo.exe
xrtwpoo.exe
memory/1484-8-0x0000000002640000-0x0000000002653000-memory.dmp
memory/1484-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp
memory/1484-4-0x0000000000400000-0x00000000008EE000-memory.dmp
memory/1484-7-0x0000000000400000-0x00000000008EE000-memory.dmp
memory/1484-2-0x0000000002640000-0x0000000002653000-memory.dmp
memory/3228-18-0x0000000000400000-0x00000000008EE000-memory.dmp
memory/3228-13-0x0000000000400000-0x00000000008EE000-memory.dmp
memory/3228-11-0x0000000000B60000-0x0000000000C60000-memory.dmp
memory/4720-10-0x0000000000590000-0x00000000005A5000-memory.dmp
memory/4720-17-0x0000000000590000-0x00000000005A5000-memory.dmp
memory/4720-16-0x0000000000590000-0x00000000005A5000-memory.dmp
memory/4720-15-0x0000000000590000-0x00000000005A5000-memory.dmp
memory/4720-19-0x0000000000590000-0x00000000005A5000-memory.dmp