Analysis
- max time kernel
170s - max time network
190s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
09/07/2023, 15:21
General
- Target TeamViewerSetupexe.exe
- Size 152KB
- Sample230709-srpqeaee2w
- SHA256 5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df
Score
10/10
Malware Config
Signatures
- VanillaRat
VanillaRat is an advanced remote administration tool coded in C#.
- Vanilla Rat payload 7 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe"C:\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\svchost.exe"C:\Users\Admin\svchost.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3256 -s 15082⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3256 -ip 32561⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
svchost.exe
svchost.exe
svchost.exe
svchost.exe
svchost.exe
memory/3256-133-0x0000000000B70000-0x0000000000B9E000-memory.dmp
memory/4696-164-0x0000000000760000-0x0000000000782000-memory.dmp
memory/4696-165-0x0000000005BB0000-0x0000000006154000-memory.dmp
memory/4696-166-0x00000000056F0000-0x0000000005782000-memory.dmp
memory/4696-167-0x0000000005790000-0x000000000579A000-memory.dmp