Analysis
- max time kernel
1s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
07/01/2024, 19:36
General
- Target a4ca303e0a9292f78b545bf698aa8c33.exe
- Size 14.9MB
- Sample240107-ybat7sdfa8
- SHA256 3e1682d2d6974e4284db9c5453e9bf08cab44d73cbb60682d2b9bcbcab9c75c3
Malware Config
Extracted
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tofsee
-
defeatwax.ru
-
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\a4ca303e0a9292f78b545bf698aa8c33.exe"C:\Users\Admin\AppData\Local\Temp\a4ca303e0a9292f78b545bf698aa8c33.exe"1⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vrsrbemn\2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jwnwobdx.exe" C:\Windows\SysWOW64\vrsrbemn\2⤵
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create vrsrbemn binPath= "C:\Windows\SysWOW64\vrsrbemn\jwnwobdx.exe /d\"C:\Users\Admin\AppData\Local\Temp\a4ca303e0a9292f78b545bf698aa8c33.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 vrsrbemn "wifi internet conection"2⤵
- Launches sc.exe
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start vrsrbemn2⤵
- 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\vrsrbemn\jwnwobdx.exeC:\Windows\SysWOW64\vrsrbemn\jwnwobdx.exe /d"C:\Users\Admin\AppData\Local\Temp\a4ca303e0a9292f78b545bf698aa8c33.exe"1⤵
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C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1280-8-0x0000000000740000-0x0000000000840000-memory.dmp
memory/1280-10-0x0000000000400000-0x000000000046E000-memory.dmp
memory/3900-22-0x0000000000640000-0x0000000000740000-memory.dmp
memory/3900-4-0x0000000000400000-0x000000000046E000-memory.dmp
memory/3900-1-0x0000000000640000-0x0000000000740000-memory.dmp
memory/3900-23-0x0000000000610000-0x0000000000623000-memory.dmp
memory/3900-2-0x0000000000610000-0x0000000000623000-memory.dmp
memory/3900-14-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4340-13-0x0000000000BE0000-0x0000000000BF5000-memory.dmp
memory/4340-16-0x0000000000BE0000-0x0000000000BF5000-memory.dmp
memory/4340-15-0x0000000000BE0000-0x0000000000BF5000-memory.dmp
memory/4340-9-0x0000000000BE0000-0x0000000000BF5000-memory.dmp
memory/4340-26-0x0000000000BE0000-0x0000000000BF5000-memory.dmp