Analysis
- max time kernel
238s - max time network
229s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
24/11/2022, 15:25
General
- Target file.exe
- Size 1.3MB
- Sample221124-stlfrscg67
- SHA256 97dd4d5ad20ddc554faf0cf0bb5bfa252cd8a0b1734bd795124edf71623b98d7
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC791.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\ProgramData\winrar\OWT.exe"C:\ProgramData\winrar\OWT.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OWT" /tr "C:\ProgramData\winrar\OWT.exe"4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OWT" /tr "C:\ProgramData\winrar\OWT.exe"5⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
OWT.exe
OWT.exe
powershell.exe.log
StartupProfileData-NonInteractive
tmpC791.tmp.bat
memory/1672-171-0x0000000000BD0000-0x0000000000D88000-memory.dmp
memory/1672-172-0x00007FFE47FC0000-0x00007FFE4810E000-memory.dmp
memory/1672-184-0x00007FFE668D0000-0x00007FFE668F7000-memory.dmp
memory/1672-183-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/1672-182-0x0000000000A10000-0x0000000000A51000-memory.dmp
memory/1672-181-0x0000000000BD0000-0x0000000000D88000-memory.dmp
memory/1672-161-0x00007FFE4A9C0000-0x00007FFE4AA6A000-memory.dmp
memory/1672-163-0x00007FFE63EF0000-0x00007FFE63F02000-memory.dmp
memory/1672-176-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/1672-170-0x0000000000BD0000-0x0000000000D88000-memory.dmp
memory/1672-169-0x00007FFE67B50000-0x00007FFE67B7B000-memory.dmp
memory/1672-168-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/1672-166-0x00007FFE67EF0000-0x00007FFE68091000-memory.dmp
memory/1672-167-0x0000000000A10000-0x0000000000A51000-memory.dmp
memory/1672-162-0x00007FFE67D20000-0x00007FFE67DBE000-memory.dmp
memory/1672-164-0x00007FFE49940000-0x00007FFE499FD000-memory.dmp
memory/1672-165-0x0000000000BD0000-0x0000000000D88000-memory.dmp
memory/3472-138-0x00007FFE63EF0000-0x00007FFE63F02000-memory.dmp
memory/3472-143-0x0000000000280000-0x0000000000438000-memory.dmp
memory/3472-135-0x00007FFE4A420000-0x00007FFE4A4CA000-memory.dmp
memory/3472-139-0x00007FFE49890000-0x00007FFE4994D000-memory.dmp
memory/3472-140-0x00007FFE67EF0000-0x00007FFE68091000-memory.dmp
memory/3472-145-0x0000000002FD0000-0x0000000003011000-memory.dmp
memory/3472-141-0x00007FFE49950000-0x00007FFE4A411000-memory.dmp
memory/3472-137-0x00007FFE67D20000-0x00007FFE67DBE000-memory.dmp
memory/3472-142-0x00007FFE67B50000-0x00007FFE67B7B000-memory.dmp
memory/3472-151-0x00007FFE49950000-0x00007FFE4A411000-memory.dmp
memory/3472-149-0x0000000000280000-0x0000000000438000-memory.dmp
memory/3472-150-0x0000000002FD0000-0x0000000003011000-memory.dmp
memory/3472-132-0x0000000000280000-0x0000000000438000-memory.dmp
memory/3472-146-0x00007FFE49950000-0x00007FFE4A411000-memory.dmp
memory/3472-144-0x00007FFE47D80000-0x00007FFE47ECE000-memory.dmp
memory/3472-133-0x0000000000280000-0x0000000000438000-memory.dmp
memory/3472-136-0x0000000002FD0000-0x0000000003011000-memory.dmp
memory/3876-178-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/3876-177-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/4864-152-0x0000019EDBD20000-0x0000019EDBD42000-memory.dmp
memory/4864-155-0x00007FFE49950000-0x00007FFE4A411000-memory.dmp
memory/4864-156-0x00007FFE49950000-0x00007FFE4A411000-memory.dmp