Analysis
- max time kernel
45s - max time network
146s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
- submitted
08/01/2023, 01:30
General
- Target SecuriteInfo.com.Variant.Tedy.268270.23439.11373.exe
- Size 918KB
- Sample230108-bwt29aef9v
- SHA256 4c3af793b926ac4a4dfb0de4b54555730bf89dcaba5b2d6c25f6c9a4eefc0be6
Malware Config
Extracted
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asyncrat
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VenomRAT+HVNC+Stealer Version:5.0.9
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Venom Clients
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127.0.0.1:4449
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95.217.121.186:4449
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Venom_RAT_HVNC_Mutex_Venom RAT_HVNC
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delay
1
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install
false
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install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
- Async RAT payload 6 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Uses the VBS compiler for execution 1 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 42 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Tedy.268270.23439.11373.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Tedy.268270.23439.11373.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regtlibv12.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regtlibv12.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_state.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_state.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_compiler.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\DataSvcUtil.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\DataSvcUtil.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regbrowsers.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regbrowsers.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EdmGen.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EdmGen.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\jsc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\jsc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1152-54-0x00000000009B0000-0x0000000000A9A000-memory.dmp
memory/1152-55-0x0000000000350000-0x00000000003A6000-memory.dmp
memory/1568-56-0x0000000000400000-0x0000000000416000-memory.dmp
memory/1568-59-0x0000000000400000-0x0000000000416000-memory.dmp
memory/1568-61-0x0000000000400000-0x0000000000416000-memory.dmp
memory/1568-62-0x00000000759F1000-0x00000000759F3000-memory.dmp
memory/1568-63-0x0000000000570000-0x0000000000580000-memory.dmp
memory/1568-64-0x0000000000740000-0x0000000000762000-memory.dmp