Analysis
- max time kernel
107s - max time network
125s - platform
windows10_x64 - resource
win10v20210408 - submitted
11/05/2021, 13:03
General
- Target svch.exe
- Size 1.0MB
- Sample210511-c6743csx86
- SHA256 4b21973994a4c674d4dd888226ffdfc50704bf10bdf6503c6c4a1c31ad95bfa2
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 2 IoCs
- Deletes itself 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\svch.exe"C:\Users\Admin\AppData\Local\Temp\svch.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JdWvNPHjWsh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3569.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\svch.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\svch.exe'3⤵
- Deletes itself
- 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/640-123-0x0000000006490000-0x0000000006530000-memory.dmp
memory/640-118-0x0000000007CD0000-0x00000000081CE000-memory.dmp
memory/640-119-0x0000000007D00000-0x0000000007D01000-memory.dmp
memory/640-120-0x000000000B310000-0x000000000B311000-memory.dmp
memory/640-121-0x0000000001710000-0x000000000171E000-memory.dmp
memory/640-122-0x0000000005F20000-0x0000000005FFD000-memory.dmp
memory/640-114-0x0000000000ED0000-0x0000000000ED1000-memory.dmp
memory/640-116-0x00000000081D0000-0x00000000081D1000-memory.dmp
memory/640-117-0x0000000007D70000-0x0000000007D71000-memory.dmp
memory/2712-126-0x0000000000400000-0x0000000000486000-memory.dmp
memory/2712-131-0x0000000002CD0000-0x0000000002CD1000-memory.dmp
memory/2712-134-0x00000000055B0000-0x00000000055B1000-memory.dmp
memory/3624-138-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/3624-139-0x0000000007AA0000-0x0000000007AA1000-memory.dmp
memory/3624-140-0x0000000007460000-0x0000000007461000-memory.dmp
memory/3624-141-0x0000000007462000-0x0000000007463000-memory.dmp
memory/3624-142-0x0000000007A00000-0x0000000007A01000-memory.dmp
memory/3624-143-0x00000000080D0000-0x00000000080D1000-memory.dmp
memory/3624-145-0x0000000008390000-0x0000000008391000-memory.dmp
memory/3624-146-0x00000000081D0000-0x00000000081D1000-memory.dmp
memory/3624-147-0x00000000089F0000-0x00000000089F1000-memory.dmp
memory/3624-148-0x0000000008B00000-0x0000000008B01000-memory.dmp
memory/3624-153-0x000000000A210000-0x000000000A211000-memory.dmp
memory/3624-154-0x00000000097B0000-0x00000000097B1000-memory.dmp
memory/3624-159-0x0000000009B90000-0x0000000009B91000-memory.dmp
memory/3624-160-0x0000000008BC0000-0x0000000008BC1000-memory.dmp
memory/3624-165-0x0000000007463000-0x0000000007464000-memory.dmp