Analysis
- max time kernel
118s - max time network
118s - platform
windows7_x64 - resource
win7v20201028 - 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 16 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\tmp9FD8.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/1016-18-0x0000000000F30000-0x0000000000F31000-memory.dmp
memory/1016-15-0x0000000000400000-0x00000000004D0000-memory.dmp
memory/1016-14-0x0000000074360000-0x0000000074A4E000-memory.dmp
memory/1016-12-0x0000000000400000-0x00000000004D0000-memory.dmp
memory/1152-6-0x00000000009C0000-0x00000000009C4000-memory.dmp
memory/1152-9-0x000000000B470000-0x000000000B57C000-memory.dmp
memory/1152-8-0x0000000005E30000-0x0000000005F70000-memory.dmp
memory/1152-7-0x000000007EF40000-0x000000007EF41000-memory.dmp
memory/1152-2-0x0000000074360000-0x0000000074A4E000-memory.dmp
memory/1152-5-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
memory/1152-3-0x0000000001030000-0x0000000001031000-memory.dmp