Analysis
- max time kernel
150s - max time network
152s - platform
windows10_x64 - resource
win10v20201028 - submitted
10/02/2021, 18:42
General
- Target SKM_C258201001130020005057.exe
- Size 784KB
- Sample210210-ng6frx3ecx
- SHA256 fbd6cf6fb215d5dc42ce4c04eb504a4192f3fcc4b65e6e377a996b104b475461
Malware Config
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of SetThreadContext 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ukzWqsTmdApiqc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp27D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C258201001130020005057.exe"2⤵
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3888-9-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/3888-6-0x0000000005280000-0x0000000005281000-memory.dmp
memory/3888-7-0x0000000004D80000-0x0000000004D81000-memory.dmp
memory/3888-8-0x0000000004C70000-0x0000000004C71000-memory.dmp
memory/3888-2-0x0000000073A20000-0x000000007410E000-memory.dmp
memory/3888-10-0x0000000004CD0000-0x0000000004CD4000-memory.dmp
memory/3888-11-0x0000000004F20000-0x0000000004F21000-memory.dmp
memory/3888-12-0x0000000005980000-0x0000000005A22000-memory.dmp
memory/3888-5-0x0000000004CE0000-0x0000000004CE1000-memory.dmp
memory/3888-3-0x0000000000390000-0x0000000000391000-memory.dmp
memory/3936-15-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3936-17-0x0000000000400000-0x0000000000478000-memory.dmp