Analysis
- max time kernel
135s - max time network
135s - platform
windows10_x64 - resource
win10v20201028 - submitted
10/03/2021, 08:44
General
- Target OC_00059837.exe
- Size 1.1MB
- Sample210310-k26cm82b32
- SHA256 378a43b4576b7d9a7bf424295f83cee901ad8347351285a3dc0708d78312a4cc
Malware Config
Signatures
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\OC_00059837.exe"C:\Users\Admin\AppData\Local\Temp\OC_00059837.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\PwQUeVi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C5B.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\OC_00059837.exe"C:\Users\Admin\AppData\Local\Temp\OC_00059837.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c A.exe /stext A.txt3⤵
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/744-11-0x0000000004FD0000-0x0000000004FD7000-memory.dmp
memory/744-12-0x0000000005A80000-0x0000000005B18000-memory.dmp
memory/744-7-0x0000000004E40000-0x0000000004E41000-memory.dmp
memory/744-8-0x0000000004B90000-0x0000000004B91000-memory.dmp
memory/744-9-0x0000000004F20000-0x0000000004F21000-memory.dmp
memory/744-10-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
memory/744-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/744-6-0x0000000005340000-0x0000000005341000-memory.dmp
memory/744-3-0x0000000000040000-0x0000000000041000-memory.dmp
memory/744-5-0x0000000004DA0000-0x0000000004DA1000-memory.dmp
memory/1200-15-0x0000000000400000-0x00000000004F7000-memory.dmp
memory/1200-17-0x0000000000400000-0x00000000004F7000-memory.dmp