Analysis
- max time kernel
131s - max time network
132s - platform
windows10_x64 - resource
win10v20201028 - submitted
07/04/2021, 15:26
General
- Target comprobante de pago bancario.exe
- Size 1.4MB
- Sample210407-bft289jfjs
- SHA256 b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d
Malware Config
Signatures
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\comprobante de pago bancario.exe"C:\Users\Admin\AppData\Local\Temp\comprobante de pago bancario.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\yrZXtfnArg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1960.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/580-11-0x0000000005860000-0x0000000005864000-memory.dmp
memory/580-14-0x000000000C4E0000-0x000000000C5EC000-memory.dmp
memory/580-6-0x0000000005870000-0x0000000005871000-memory.dmp
memory/580-7-0x0000000005410000-0x0000000005411000-memory.dmp
memory/580-8-0x0000000005350000-0x0000000005351000-memory.dmp
memory/580-9-0x0000000005570000-0x0000000005571000-memory.dmp
memory/580-10-0x0000000005610000-0x0000000005611000-memory.dmp
memory/580-2-0x0000000073F30000-0x000000007461E000-memory.dmp
memory/580-5-0x0000000005260000-0x0000000005261000-memory.dmp
memory/580-12-0x000000007EAC0000-0x000000007EAC1000-memory.dmp
memory/580-13-0x0000000008C80000-0x0000000008DC0000-memory.dmp
memory/580-3-0x0000000000930000-0x0000000000931000-memory.dmp
memory/3580-17-0x0000000000400000-0x00000000004D0000-memory.dmp
memory/3580-19-0x0000000073F30000-0x000000007461E000-memory.dmp
memory/3580-29-0x000000007F960000-0x000000007F961000-memory.dmp
memory/3580-28-0x0000000005430000-0x0000000005431000-memory.dmp